LDMProduct Features
Up to 100W heat load
Temperature control range from+20oC to 85oC at 100W heat load
Temperature control range from
+10oC to 85oC at 75W heat load
Optical table mounting
Unobstructed access to the front of
the laser diodeCompatible with ILX Lightwave
current sources and temperature
controllers

The LDM-4415 Laser Diode Mounting Fixture provides acompact, easy to use solution for mounting and temperature
controlling CS packaged conductively cooled high power
laser diodes. Heat sink technology developed at ILX
Lightwave allows the 4415 to dissipate up to 100W of heatgenerated by the laser diode with an active temperature
control range of +20oC to 85oC. Fixture design and precision
machining result in repeatable thermal resistance between
the CS packaged device and mounting block, minimizing thetemperature difference between the laser and the fixture.
The LDM-4415 is compatible with ILX Lightwave
high power current sources and temperature controllers
through interconnect cabling allowing up to 120A of laser
diode current for the highest power conductively cooled
laser diode bars. Optical table mounting is made possible
through standard 1” spaced mounting holes on the base ofthe mount.

4415

Temperature
Controlled
CS Bar Package
Fixture4415

Temperature
Controlled
CS Bar Package
FixtureFor characterization over temperature of your CS
packaged devices, the LDM-4415 comes with integrated
thermoelectric modules and water cooled heat sink
for a control range of +20oC to 85oC. Lower control
temperatures can be reached with heat loads <100W(see Figure 1). The high power TEC’s have the thermal
performance to dissipate up to 100W head load fromconductively cooled CS packaged devices. A hybrid
D-sub temperature control connector is provided forcompatibility with ILX Lightwave LDT-5900 Series
Temperature Controllers.

Repeatable, Low Thermal Resistance
Careful attention to the LDM-4415’s mechanicaldesign results in a low thermal resistance between
the CS package and the mounting block. Torquing thedevice to the recommended value provides constantand repeatable clamping pressure on the CS package
ensuring best thermal performance and helps eliminate
measurement inconsistencies.

Easy Connections for Quick Set-Up

Connections for laser drive current, forward voltage
measurement, and temperature control are provided
on the rear panel of the fixture. Auxilary anodeand cathode connections are provided on the rearpanel with #10-32 lugs for connection to other power
supplies.

Optical Table Mounting
Optical table mounting is made possible
through standard 1” spaced mounting holes on thebase of the mount. Additionally, the LDM-4415 isdesigned for integration into optical test systems
with unobstructed laser facet access at the front ofthe fixture.
30

Minimum Temperature (C)LDM

Active Temperature Control

TE Module2:

3

Thermal Resistance :Repeatability:

0-10020406080100

120Heat Load (W)Figure 1: Minimum Control Temperature vs. Heat Load

Specifications

Case Temperature:
Ground:Forward Voltage:
Laser Diode Connections
Anode:
Cathode:Temperature Control
Range1:
Sensor Type:
Chilled Water:
Temperature:
Connectors:

10-20

The LDM-4415 is compatible with ILX’s LDX-3600
Series High Power Drivers through interconnect cabling.

Laser Packages
Diode Dimensions:
Maximum Laser Current:
Thermal Load:
Laser Clamping:
Torque:Rear Connectors
Laser Diode Current:

2024.9 mm x 24.9 mm
125A
100W
#8-32 UNC
15 in-lb.
Dual crown clip socket#10-32; power lugs (anodeand cathode)Hybrid D-sub, male, 7W2
Female banana jackFemale banana jacks

GENERAL
Size (HxWxD):
Weight:Regulatory Compliance:

114 mm x 108 mm x 127 mm(4.5" x 4.25" x 5")
1.6 kg (3.6 lbs)
RoHSNOTES
1. Control range based on 100W heat load on hot plate. Tested with LDT-53540 with
12.4oC cooled water and 1.9 liter per minute flow rate. Lower control temperatures
can be achieved with lower water temperatures for any given heat load.
2. Module ratings based on two thermoelectric modules wired in series at 25oC
operating temperature.
3. Laser to mounting plate

Laser mounting plate
10 ga terminated wire
Solid state+20oC to 85oC
10k NTC thermistor

ORDERING INFORMATION<15oC
1/8” NPT to 1/4” nipple,
barbedQmax = 252W
Imax = 14.6A
Vmax = 28.8V
DTmax = 67oC
<0.10oC/W<0.01oC/W

LDM-4415

Temperature Controlled CS Bar Package Fixture

CC-390120A Current Source/Laser Diode Mount
Interconnect Cable

CC-596H

LDT-5900 Series Temperature Control
Interconnect Cable

LDX-36000

High Power Laser Diode Current Sources

LDT-5948

60W Temperature Controller

LDT-5980

120W Temperature Controller

LDT-53520

200W Laser Diode Thermoelectric Chiller

LDT-53540

375W Laser Diode Thermoelectric Chiller

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

1-800-459-9459

www.ilxlightwave.com

International Inquiries: 406-556-2481
email: sales@ilxlightwave.com

REV04.091809