LDX
3500B
SeriesPrecisionLaser Diode
DriverSpecifications
CURRENT OUTPUT

Output Current Range:
Setpoint Resolution:
2
Setpoint Accuracy (% of FS):
Compliance Voltage:
Temperature Coefficient:
Short-Term Stability (1 hr):5Long-Term Stability (24 hr):6
Noise and Ripple (rms)7
High Bandwidth Mode:CW Mode:Transients
Operational: 8Power-line Induced: 9

Product Features
LDX-3525B

LDX-3545B

LDX-3565B

200mA / 500mA
12 bit (100 µA / 150 µA)±0.1% (±.2mA / ±.5mA)
7.0 V<50 ppm/°C<20 ppm<50 ppm

1000mA / 3000mA
12 bit (250 µA / 750 µA)±0.1% (±1mA / ±3mA)
6.0 V 3<50 ppm/°C<20 ppm<50 ppm

2000mA / 6000mA
12 bit (500 µA / 1.5mA)±0.1%4 (±2mA / ±6mA)
5.0 V<50 ppm / <100 ppm/°C<20 ppm<50 ppm<4 µA rms /<4 µA rms<2 µA rms /<2 µA rms<25 µA rms /<25 µA rms<15 µA rms /<15 µA rms<50 µA rms /<100 µA rms<15 µA rms /<30 µA rms<1mA / <1mA
<10mA / <10mA<2mA / <5mA
<20mA / <20mA<30mA / <40mA<20mA / <40mA

0– 202.0mA / 0–505.0mA
1mA / 2mA
±1%

0–1010mA / 0–3030mA
4mA / 12mA
±1%

0–2020mA / 0–6060mA
8mA / 24mA
±1%

Differential
0–5 V, adjustable
0–5000 µA±0.01%±0.1% (±5 µA)
1 kHz

Differential
0–5 V, adjustable
5–9999 µA±0.02%±0.1% (±5 µA)
1 kHz

Differential
0–5 V, adjustable
0.01–25mA±0.02%±0.1% (±5 µA)
1 kHz

0–10 V, 1 k
20mA/V / 50mA/V

0–10 V, 1 k100mA/V / 300mA/V

0–10 V, 1 k200mA/V / 600 mA/V

DC–500 kHz / DC–150 kHz
DC–100 Hz / DC–100 Hz

DC–150 kHz / DC–50 kHz
DC–100 Hz / DC–100 Hz

DC–100/ DC–50 kHz
DC–80 Hz / DC–80 Hz

0–10 V
20mA/V / 50 mA/V

0–10 V
100mA/V / 300 mA/V

0–10 V
200mA/V / 600 mA/V

4 digit green LED
0–200.0mA / 0–500.0mA
0.1mA /0.1mA±0.1% of FS
0–5.000mA
0.001mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–500.0 mW
0.1 mW

4 digit green LED
0–999.9mA / 0–3000mA
0.1mA / 1.0mA±0.1% of FS
0–9.999mA
0.001mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–3000 mW
1 mW

4 digit green LED
0–2000mA / 0–6000mA
1.0mA / 1.0mA±0.15% of FS
0–25.00mA
0.01mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–6000 mW
1 mW

DRIVE CURRENT LIMIT SETTINGS

Range:
Resolution:
Accuracy (% of FS):

PHOTODIODE FEEDBACKType:
Reverse Bias:
Photodiode Current Range:
Output Stability: 10
Setpoint Accuracy (% of FS):Power Modulation BW:

ANALOG MODULATION
Input:
Transfer Function (±15%):
Bandwidth (3dB)11
High Bandwidth Mode:CW Mode:ANALOG OUTPUT

Output Voltage:
Transfer Function (±15% of FS):MEASUREMENT (DISPLAY)

Display Type:
Output Current Range:
Output Current Resolution:
Output Current Accuracy:
Photodiode Current Range:
Photodiode Current Resolution:
Photodiode Current Accuracy:
Photodiode Resposivity Range:12
Photodiode Responsivity Resolution:
Optical Power Range:
Optical Power Resolution:

CONNECTORS
Current Source Output:
PD Input:
Modulation Input:
Analog Output:
Chassis Ground:Interlock:

LASER DIODE PROTECTION
Output Shorting Relay:
Output Enable Delay:
Current Limit:
AC Power Failure / Brown-out Protection
Hardware Fault Response Time
Current Limit:
Voltage Limit
Open Circuit:
Error Monitoring / Reporting:Three models with source current
output up to 6A
High stability, low noise current
output specifically for laser diodes
Constant current and constant
power operating modes
Analog modulation

9-pin, D-sub female
BNC rear panel; 9-pin D-sub laser connector
BNC front panel
BNC rear panel
4 mm Banana Jack
9-pin D-sub laser connector
Normally closed
2s (per 21CFR 1040.10)
Adjustable, redundant hardware limit
Continuous operation
5µS
50µS
Current limit, voltage limit, open circuit,optical power limit, interlock

GENERAL

Power Requirements, VAC (50–60Hz):
Remote Interface:
Size (HxWxD):
Weight (LDX-3525B and LDX-3545B):
Weight (LDX-3565B):
Operating Temperature:
Storage Temperature:
Humidity:
Laser Safety:
Regulatory Compliance:

NOTES
1
2
3
4
5
6
7

All values measured after a one hour warm-up period.
Measured at 25°C ambient.
Maximum compliance voltage of 5V @ 95VAC input
Maximum compliance voltage of 3.5V @ 95VAC input
Over any 1-hour period, half-scale output @ 25°C ambient
Over any 24-hour period, half-scale output @ 25°C ambient
Measured electrically, with a resistive load evaluating AC coupled rms value over a
100 kHz bandwidth.
8 Maximum output current transient resulting from normal operational situations(e.g., power on-off, current on-off), as well as accidental situations (e.g., power line
plug removal). Tested to ILX Technical Standard #LDC-00196.
9 Maximum output current transient resulting from a 1000V power line transient spike.
Tested to ILX Technical standard #LDC-00196. Request ILX Application Note #3.
10 Maximum monitor photodiode current drift over any 30-minute period. Assumes
zero drift in photodiode responsivity.
11 Assumes 50% modulation depth at half-scale output into a 10 load.
12 The responsivity value is user-defined and is used to calculate the optical power.

USB 2.0 serial interface

95–125, 210–250
USB 2.088 mm x 185 mm x 304 mm
3.5’’x 7.3’’x12’’
3.5 kg (7.65 lbs)
4.6 kg (10.15 lbs)
10°C to 40°C
–40°C to 70°C
<85% relative, noncondensing
Keyswitch, Interlock, Output Delay(meets 21 CFR 1040.10),all models
CE certified
EN 61326-1:2006 Basic Requirements; Immunity
EN 55011:2007 Radiated and Conducted Emissions
EN 61010-1 Safety Requirements
EN 60950 Low Voltage Directive

In keeping with our commitment to continuing improvement, ILX Lightwave reserves the right to change
specifications without notice or liability for such changes.

ORDERING INFORMATION
LDX-3525B
LDX-3545B
LDX-3565B
CC-305S
CC-306S
LNF-320
RM-134
RM-135

Precision Laser Diode Driver (200/500 mA)
Precision Laser Diode Driver (1/3 A)
Precision Laser Diode Driver (2/6 A)
Current Source/Laser Diode Mount Interconnect Cable
Current Source/Unterminated Interconnect Cable
Low Noise Filter
Single Rack Mounting Kit
Dual Rack Mounting Kit

For information call
P.O. Box 6310, Bozeman, MT 59771 • FAX: 406-586-9405

www.ilxlightwave.com

The new LDX-3500B Series Laser Diode Drivers are a familyof low noise high stability current sources specifically for precisioncontrol of low to high power laser diodes. Three models witha full scale output current range from 200 mA to 6A operate inconstant current or constant optical power modes to cover a wide
range of laser diode testing and control applications. In addition
to precision current control, the LDX-3500B Series drivers also
feature photodiode current measurement for constant power
control, analog modulation for power and wavelength tuning,
and an analog output for remote monitoring.
All of ILX Lightwave’s proven laser diode protection strategies
are designed into each model, which include adjustable current
limits, shorting relays, slow turn-on circuits, and transient
protection during power up and laser operation.
A new front panel was designed for quick and easy operation.
Parameters and instrument modes are grouped without confusing
multi-function keys or menus. Informative error indicators suchas open circuit and current and power limit let you resolve set
up and operating problems quickly.
The new USB interface and control software allows for fast,
repeatable instrument control during R&D and manufacturing
testing and other automated control applications.

1-800-459-9459
International Inquiries: 406-556-2481
email: sales@ilxlightwave.com

Rev02.020410

Precision Laser Diode Driver

LDX
3500B
SeriesPrecisionLaser Diode
DriverLDX
3500B
SeriesPrecisionLaser Diode
Driver

LDX
3500B
SeriesPRECISION LASER DIODE TESTING
Each LDX-3500B Series Laser Diode Driver was
designed as a current source specifically for low to highpower laser diodes. Stable, precision low noise current
control with a set point accuracy of 0.1% is delivered to
the laser during R&D or manufacturing testing including
L-I testing, qualification testing or automated testing andcontrol applications.

A CHOICE OF LASER CONTROL MODES
The LDX-3500B Series Laser Diode Drivers control
the current to the laser diode in one of three modes:
1. Constant Current low bandwidth
2. Constant Current high bandwidth
3. Constant Optical PowerThe Constant Current, low bandwidth mode offers
improved noise performance and is optimized for DC
operation.
In Constant Current high bandwidth mode, theoutput stage supports higher modulation frequencies,
up to 500 kHz, for dithering the laser current for
power and wavelength tuning. For laser protection,
the modulation input is implemented as a differential
input, allowing the modulation control voltage and laser
outputs to use different grounds.
The Constant Power mode provides constant
optical power operation of your laser diode byusing the photocurrent from the laser’s rear facet
photodiode or from an external photodiode measuring
front facet light in a feedback control loop to thecurrent source for precise and stable optical power
control.

DESIGNED TO PROTECT YOURLASER DIODE
The LDX-3500B Series Laser Diode Driver provides
multiple laser diode protection features such as
independent hardware current limits, slow-start turn-on
circuits, and isolated supplies. The output of the drivers
are bound by fully independent current limits.
A “clamping” circuit topology prevents the limits
from being exceeded under any condition including
current modulation. An output shorting switch provides
a safe method of switching the output on and off during
operation while protecting the laser during load/unload
or connect/disconnect operations.
Also, if the instrument senses an open circuit,the output will immediately shut off followed by theillumination of the appropriate fault indicator.
During AC power-up, the laser is protected fromcurrent transients by power line filters, double shieldedtransformers and hardware and firmware turn-on
sequencing. When the output is enabled, slow start
circuits gradually open shorting FETs allowing current toslowly be diverted to the laser. Transients from normal
instrument operation such as output on/off have beenthoroughly tested and minimized as well as transientsfrom inadvertent instrument operation (such as modeswitching).

PrecisionLaser Diode
Driver

The new USB interface and control software allows for quick, effortless remotecontrol for fast, repeatable instrument control during L-I testing and R&D or
manufacturing control applications.

Each of the 3500B Series Current Sources feature acurrent limit “clamping” topology which prevents thelimit from being exceeded under any condition including
current modulation.

AUTOMATE LASER DIODE CONTROLAND TESTING
Remote instrument operation is available on all LDX3500B Series Laser Diode Drivers through a USB 2.0
serial interface. All instrument controls and functions
are accessible through the serial interface for easy
remote programming and control in automated test
and control systems where repeatable and accurate
test sequencing, measurements, and data handlingare required.
Installation software available with each instrument
in a very easy to read and change format facilitates
instrument set up and control in minutes. Through thissoftware, instrument controls are organized similar to
the front panel for easy, intuitive instrument remotecontrol and monitoring. Also included is an example
L-I application written in C# with the source code forreference.

Whether the application is data intensive L-I testing orcontrol in R&D manufacting testing, remote operation of
the LDX-3500B saves time and ensures systematic datacollection and instrument operation.

SIMPLIFY ROUTINE MAINTENANCE
The LDX-3500B architecture simplifies routine
maintenance; calibration of the laser current source can be
performed via the front panel or remotely through the USB
2.0 interface, without opening the instrument up or manualadjustments. A calibration mode is entered through uniquepush button combinations or control commands, andall calibration data is easily entered via the front panel
with the adjust knob or commands. Calibration data is
automatically stored in on-board non-volatile memory.

EASE OF OPERATIONThe LDX-3500B Series Laser Diode Drivers aremicroprocessor controlled instruments. The front panelof the LDX-3500B Series was designed for quick andeasy instrument operation and information display. A
bright five digit, green LED display is easy to read froma distance, even with laser safety glasses Parameters
and instrument modes are grouped without confusing
multi-function keys. Informative error indicators such as
open circuit, current and power limit let the user resolve
set-up and operational problems quickly.

PUT OUR EXPERTISE TO WORKILX Lightwave is a recognized world leader in laser
diode instrumentation and test systems. Our products
are not only renowned for their reliability, quality, andvalue, they’re backed up by industry leading after sales
support. For more information about the LDX-3500B
Series Current Sources and our complete family of laser
diode instrumentation and test systems, call us today orvisit www.ilxlightwave.com.

LDX
3500B
SeriesPrecisionLaser Diode
Driver

LDX
3500B
SeriesPRECISION LASER DIODE TESTING
Each LDX-3500B Series Laser Diode Driver was
designed as a current source specifically for low to highpower laser diodes. Stable, precision low noise current
control with a set point accuracy of 0.1% is delivered to
the laser during R&D or manufacturing testing including
L-I testing, qualification testing or automated testing andcontrol applications.

A CHOICE OF LASER CONTROL MODES
The LDX-3500B Series Laser Diode Drivers control
the current to the laser diode in one of three modes:
1. Constant Current low bandwidth
2. Constant Current high bandwidth
3. Constant Optical PowerThe Constant Current, low bandwidth mode offers
improved noise performance and is optimized for DC
operation.
In Constant Current high bandwidth mode, theoutput stage supports higher modulation frequencies,
up to 500 kHz, for dithering the laser current for
power and wavelength tuning. For laser protection,
the modulation input is implemented as a differential
input, allowing the modulation control voltage and laser
outputs to use different grounds.
The Constant Power mode provides constant
optical power operation of your laser diode byusing the photocurrent from the laser’s rear facet
photodiode or from an external photodiode measuring
front facet light in a feedback control loop to thecurrent source for precise and stable optical power
control.

DESIGNED TO PROTECT YOURLASER DIODE
The LDX-3500B Series Laser Diode Driver provides
multiple laser diode protection features such as
independent hardware current limits, slow-start turn-on
circuits, and isolated supplies. The output of the drivers
are bound by fully independent current limits.
A “clamping” circuit topology prevents the limits
from being exceeded under any condition including
current modulation. An output shorting switch provides
a safe method of switching the output on and off during
operation while protecting the laser during load/unload
or connect/disconnect operations.
Also, if the instrument senses an open circuit,the output will immediately shut off followed by theillumination of the appropriate fault indicator.
During AC power-up, the laser is protected fromcurrent transients by power line filters, double shieldedtransformers and hardware and firmware turn-on
sequencing. When the output is enabled, slow start
circuits gradually open shorting FETs allowing current toslowly be diverted to the laser. Transients from normal
instrument operation such as output on/off have beenthoroughly tested and minimized as well as transientsfrom inadvertent instrument operation (such as modeswitching).

PrecisionLaser Diode
Driver

The new USB interface and control software allows for quick, effortless remotecontrol for fast, repeatable instrument control during L-I testing and R&D or
manufacturing control applications.

Each of the 3500B Series Current Sources feature acurrent limit “clamping” topology which prevents thelimit from being exceeded under any condition including
current modulation.

AUTOMATE LASER DIODE CONTROLAND TESTING
Remote instrument operation is available on all LDX3500B Series Laser Diode Drivers through a USB 2.0
serial interface. All instrument controls and functions
are accessible through the serial interface for easy
remote programming and control in automated test
and control systems where repeatable and accurate
test sequencing, measurements, and data handlingare required.
Installation software available with each instrument
in a very easy to read and change format facilitates
instrument set up and control in minutes. Through thissoftware, instrument controls are organized similar to
the front panel for easy, intuitive instrument remotecontrol and monitoring. Also included is an example
L-I application written in C# with the source code forreference.

Whether the application is data intensive L-I testing orcontrol in R&D manufacting testing, remote operation of
the LDX-3500B saves time and ensures systematic datacollection and instrument operation.

SIMPLIFY ROUTINE MAINTENANCE
The LDX-3500B architecture simplifies routine
maintenance; calibration of the laser current source can be
performed via the front panel or remotely through the USB
2.0 interface, without opening the instrument up or manualadjustments. A calibration mode is entered through uniquepush button combinations or control commands, andall calibration data is easily entered via the front panel
with the adjust knob or commands. Calibration data is
automatically stored in on-board non-volatile memory.

EASE OF OPERATIONThe LDX-3500B Series Laser Diode Drivers aremicroprocessor controlled instruments. The front panelof the LDX-3500B Series was designed for quick andeasy instrument operation and information display. A
bright five digit, green LED display is easy to read froma distance, even with laser safety glasses Parameters
and instrument modes are grouped without confusing
multi-function keys. Informative error indicators such as
open circuit, current and power limit let the user resolve
set-up and operational problems quickly.

PUT OUR EXPERTISE TO WORKILX Lightwave is a recognized world leader in laser
diode instrumentation and test systems. Our products
are not only renowned for their reliability, quality, andvalue, they’re backed up by industry leading after sales
support. For more information about the LDX-3500B
Series Current Sources and our complete family of laser
diode instrumentation and test systems, call us today orvisit www.ilxlightwave.com.

LDX
3500B
SeriesPrecisionLaser Diode
DriverSpecifications
CURRENT OUTPUT

Output Current Range:
Setpoint Resolution:
2
Setpoint Accuracy (% of FS):
Compliance Voltage:
Temperature Coefficient:
Short-Term Stability (1 hr):5Long-Term Stability (24 hr):6
Noise and Ripple (rms)7
High Bandwidth Mode:CW Mode:Transients
Operational: 8Power-line Induced: 9

Product Features
LDX-3525B

LDX-3545B

LDX-3565B

200mA / 500mA
12 bit (100 µA / 150 µA)±0.1% (±.2mA / ±.5mA)
7.0 V<50 ppm/°C<20 ppm<50 ppm

1000mA / 3000mA
12 bit (250 µA / 750 µA)±0.1% (±1mA / ±3mA)
6.0 V 3<50 ppm/°C<20 ppm<50 ppm

2000mA / 6000mA
12 bit (500 µA / 1.5mA)±0.15%(±2mA / ±6mA)
45.0 V<50 ppm / <100 ppm/°C<20 ppm<50 ppm<4 µA rms /<4 µA rms<2 µA rms /<2 µA rms<25 µA rms /<25 µA rms<15 µA rms /<15 µA rms<50 µA rms /<100 µA rms<15 µA rms /<30 µA rms<1mA / <1mA
<10mA / <10mA<2mA / <5mA
<20mA / <20mA<30mA / <40mA<20mA / <40mA

0– 202.0mA / 0–505.0mA
1mA / 2mA
±1%

0–1010mA / 0–3030mA
4mA / 12mA
±1%

0–2020mA / 0–6060mA
8mA / 24mA
±1%

Differential
0–5 V, adjustable
0–5000 µA±0.01%±0.1% (±5 µA)
1 kHz

Differential
0–5 V, adjustable
5–9999 µA±0.02%±0.1% (±5 µA)
1 kHz

Differential
0–5 V, adjustable
0.01–25mA±0.02%±0.1% (±5 µA)
1 kHz

0–10 V, 1 k
20mA/V / 50mA/V

0–10 V, 1 k100mA/V / 300mA/V

0–10 V, 1 k200mA/V / 600 mA/V

DC–500 kHz / DC–150 kHz
DC–100 Hz / DC–100 Hz

DC–150 kHz / DC–50 kHz
DC–100 Hz / DC–100 Hz

DC–100/ DC–50 kHz
DC–80 Hz / DC–80 Hz

0–10 V
20mA/V / 50 mA/V

0–10 V
100mA/V / 300 mA/V

0–10 V
200mA/V / 600 mA/V

4 digit green LED
0–200.0mA / 0–500.0mA
0.1mA /0.1mA±0.1% of FS
0–5.000mA
0.001mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–500.0 mW
0.1 mW

4 digit green LED
0–999.9mA / 0–3000mA
0.1mA / 1.0mA±0.1% of FS
0–9.999mA
0.001mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–3000 mW
1 mW

4 digit green LED
0–2000mA / 0–6000mA
1.0mA / 1.0mA±0.15% of FS
0–25.00mA
0.01mA±0.1% of FS
0.001–1.000 mA/mW
0.001 mA/mW
0–6000 mW
1 mW

DRIVE CURRENT LIMIT SETTINGS

Range:
Resolution:
Accuracy (% of FS):

PHOTODIODE FEEDBACKType:
Reverse Bias:
Photodiode Current Range:
Output Stability: 10
Setpoint Accuracy (% of FS):Power Modulation BW:

ANALOG MODULATION
Input:
Transfer Function (±15%):
Bandwidth (3dB)11
High Bandwidth Mode:CW Mode:ANALOG OUTPUT

Output Voltage:
Transfer Function (±15% of FS):MEASUREMENT (DISPLAY)

Display Type:
Output Current Range:
Output Current Resolution:
Output Current Accuracy:
Photodiode Current Range:
Photodiode Current Resolution:
Photodiode Current Accuracy:
Photodiode Resposivity Range:12
Photodiode Responsivity Resolution:
Optical Power Range:
Optical Power Resolution:

CONNECTORS
Current Source Output:
PD Input:
Modulation Input:
Analog Output:
Chassis Ground:Interlock:

LASER DIODE PROTECTION
Output Shorting Relay:
Output Enable Delay:
Current Limit:
AC Power Failure / Brown-out Protection
Hardware Fault Response Time
Current Limit:
Voltage Limit
Open Circuit:
Error Monitoring / Reporting:Three models with source current
output up to 6A
High stability, low noise current
output specifically for laser diodes
Constant current and constant
power operating modes
Analog modulation

9-pin, D-sub female
BNC rear panel; 9-pin D-sub laser connector
BNC front panel
BNC rear panel
4 mm Banana Jack
9-pin D-sub laser connector
Normally closed
2s (per 21CFR 1040.10)
Adjustable, redundant hardware limit
Continuous operation
5µS
50µS
Current limit, voltage limit, open circuit,optical power limit, interlock

GENERAL

Power Requirements, VAC (50–60Hz):
Remote Interface:
Size (HxWxD):
Weight (LDX-3525B and LDX-3545B):
Weight (LDX-3565B):
Operating Temperature:
Storage Temperature:
Humidity:
Laser Safety:
Regulatory Compliance:

NOTES
1
2
3
4
5
6
7

All values measured after a one hour warm-up period.
Measured at 25°C ambient.
Maximum compliance voltage of 5V @ 95VAC input
Maximum compliance voltage of 3.5V @ 95VAC input
Over any 1-hour period, half-scale output @ 25°C ambient
Over any 24-hour period, half-scale output @ 25°C ambient
Measured electrically, with a resistive load evaluating AC coupled rms value over a
100 kHz bandwidth.
8 Maximum output current transient resulting from normal operational situations(e.g., power on-off, current on-off), as well as accidental situations (e.g., power line
plug removal). Tested to ILX Technical Standard #LDC-00196.
9 Maximum output current transient resulting from a 1000V power line transient spike.
Tested to ILX Technical standard #LDC-00196. Request ILX Application Note #3.
10 Maximum monitor photodiode current drift over any 30-minute period. Assumes
zero drift in photodiode responsivity.
11 Assumes 50% modulation depth at half-scale output into a 10 load.
12 The responsivity value is user-defined and is used to calculate the optical power.

USB 2.0 serial interface

95–125, 210–250
USB 2.088 mm x 185 mm x 304 mm
3.5’’x 7.3’’x12.5’’
3.5 kg (7.65 lbs)
4.6 kg (10.15 lbs)
10°C to 40°C
–40°C to 70°C
<85% relative, noncondensing
Keyswitch, Interlock, Output Delay(meets 21 CFR 1040.10),all models
CE certified
EN 61326-1:2006 Basic Requirements; Immunity
EN 55011:2007 Radiated and Conducted Emissions
EN 61010-1 Safety Requirements
EN 60950 Low Voltage Directive

In keeping with our commitment to continuing improvement, ILX Lightwave reserves the right to change
specifications without notice or liability for such changes.

ORDERING INFORMATION
LDX-3525B
LDX-3545B
LDX-3565B
CC-305S
CC-306S
LNF-320
RM-134
RM-135

Precision Laser Diode Driver (200/500 mA)
Precision Laser Diode Driver (1/3 A)
Precision Laser Diode Driver (2/6 A)
Current Source/Laser Diode Mount Interconnect Cable
Current Source/Unterminated Interconnect Cable
Low Noise Filter
Single Rack Mounting Kit
Dual Rack Mounting Kit

For information call
P.O. Box 6310, Bozeman, MT 59771 • FAX: 406-586-9405

www.ilxlightwave.com

The new LDX-3500B Series Laser Diode Drivers are a familyof low noise high stability current sources specifically for precisioncontrol of low to high power laser diodes. Three models witha full scale output current range from 200 mA to 6A operate inconstant current or constant optical power modes to cover a wide
range of laser diode testing and control applications. In addition
to precision current control, the LDX-3500B Series drivers also
feature photodiode current measurement for constant power
control, analog modulation for power and wavelength tuning,
and an analog output for remote monitoring.
All of ILX Lightwave’s proven laser diode protection strategies
are designed into each model, which include adjustable current
limits, shorting relays, slow turn-on circuits, and transient
protection during power up and laser operation.
A new front panel was designed for quick and easy operation.
Parameters and instrument modes are grouped without confusing
multi-function keys or menus. Informative error indicators suchas open circuit and current and power limit let you resolve set
up and operating problems quickly.
The new USB interface and control software allows for fast,
repeatable instrument control during R&D and manufacturing
testing and other automated control applications.

1-800-459-9459
International Inquiries: 406-556-2481
email: sales@ilxlightwave.com

Rev02.020410

Precision Laser Diode Driver

LDX
3500B
SeriesPrecisionLaser Diode
Driver