BLL OEM Light Source Preliminary Product Description

BLL OEM Ultra-Compact Light Source
Preliminary Product Description© SUPERLUM Diodes Ltd. 2020-2021

All rights reserved

B3, Fota Point Enterprise Park, Carrigtwohill, Co. Cork, Ireland.
Ph. +353-(0)21-4533666;
For more information, please visit: http://www.superlumdiodes.com
For sales inquiries, please contact: sales@superlum.ie

ATTENTION
ELECTROSTATICSENSITIVE DEVICES

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BLL OEM Light Source Preliminary Product Description

ABSOLUTE MAXIMIM RATINGS WARNING
Failure to comply with the following requirements may result in the catastrophic failureof the Light Source.

Parameter
DC supply voltage, VDC supply current, AMax
5.6
1.5

LASER SAFETY WARNING
This Light Source emits invisible light that may have a potential hazard associated withCLASS 3R to 3B of IEC 60825-1. For further information regarding laser safety andlaser classification of the Light Source please contact SUPERLUM.

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BLL OEM Light Source Preliminary Product Description

1 Light Source Description
1.1 General Description
BLL Ultra-Compact Broadband Light Sources are wide spectrum SM- or PM-fiber coupled light source
modules for applications requiring a reliable, powerful, stable, and low-noise SLD light source with a broad
and flat spectrum and a short coherence length. A high-precision current and temperature controller powers
the SLD module inside the light source. The SLD output can be modulated (ON/OFF) at the rate of up to 10
kHz. BLL Light source is designed to be mounted on a PCB or a Superlum BLL Evaluation Board 1. An
optional BLL Evaluation Board allows for a quick and easy BLL light Source setup and testing.
BLL Light Source allows various options to control the optical output: by the pushbutton on the case, by logic
signals via the 12-pin connector, or from a USB interface via a Superlum BLL Evaluation Board1 .
Superlum OEM light sources are designed and intended for integration into Customer equipment and must
be considered components.

1.2 Optical Performance
The optical design is based on SM or PM optical fiber. Non-isolated Light Source can tolerate no more than 30dB feedback.
The optical output can be a FC/APC or SC/APC terminated fiber pigtail in a 0.9 mm tube.
NOTE – The ultra compact BLL is customizable. Please contact sales@superlum.ie for more information on
the optical performance and other spec options available with all our product line.

1.3 Package Contents
This Light Source is supplied with the following accessories as standard (these parts are to be found in theshipping box which should be kept and carefully stored):-1 x connector for 12-pin connector port;
1 x USB card containing Superlum Companion Software and a copy of this Manual;
1 x Acceptance test report (ATR).

BLL Evaluation Board1 comes with a USB cable and a power supply.

1 Sold separately.

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BLL OEM Light Source Preliminary Product Description

1.4 Outlines and Dimensions

Figure 1. Drawings of Light Source. Dimensions are in millimeters [inches]

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BLL OEM Light Source Preliminary Product Description

1.5 Control LEDs

OUTPUTSTATUS

Figure 2. LED indicators of the Light Source.

There are two LEDs on the front panel. These LEDs are a visual indication of the device status as describedin the Table 1 below.
Table 1. Statuses of control LEDs
LED Name
LED State
System status
No light
The optical output is off.
Flickering green
The optical output is starting (soft start).
“OUTPUT”
GreenThe optical output is on.
Yellow
SLD or PD current limit reached (SLD degradation or opticalfeedback). Time to service.
No light
No power. No active SLDs.
Flickering green
Temperature stabilization is in process.
GreenSLD temperature is stabilized at the pre-set level. The optical output
can be switched on. No errors detected.
Flickering red
The optical output and all controls are disabled once the interlock has“STATUS”
been actuated (correspondent terminals on the REMOTE port areopen circuited).
Interlock is only operable if the correspondent option is computer
activatedRedCommon Error. Failure of the temperature controller.

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BLL OEM Light Source Preliminary Product Description

2 Technical Specification
2.1 Electrical Connections

Figure 3. Light Source electrical pin configuration

Table 2. Light Source electrical pin description.

PinNumber
1, 23, 4567PinName
VCC
GND
RMD
RON
REN

Pin Type

Pin Description

Power Input

Input voltage supply (5 VDC +/- 5%)
GroundInput
Modulation input. Active high.
Input
ON/OFF optical output power. Active high.
Input
ENABLE/DISABLE optical output. Optical output
disabled if this pin not connected or tied to ground.
Apply VCC to enable optical output.
8RDY
OutputReadiness status. Low state indicates that the device
is ready to accept RON signal.
9OUT
OutputOutput status. Low state indicates that the opticaloutput is ON.
10SRV
OutputService status. Low state indicates that the service
required.
11RXD
Input
UART data input
12TXD
OutputUART data output
All outputs are open – collector type. An external resistor must be connected to VCC.
Recommended resistor value is 4.7 KOhm.
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BLL OEM Light Source Preliminary Product Description

3 General Information
3.1 Mounting
Temperature control is an essential factor when considering where and how you will integrate this lightsource into your application. Please contact Superlum should you have any queries about the BLL thermal
management during installation and operation. A forced air circulation system around the enclosure isstrongly recommended. To ensure the maximum effective heat dissipation, the Light Source may bemounted to an appropriate heatsink in any spatial orientation with 25mm of free space around the sides andcover to allow air circulation. The Light source should be anchored to a flat plate heatsink large enough toaccommodate the light source base's entire footprint (see section 1.4; Figure 1. Drawing of Light Source)
using the Four (4) anchoring holes.

3.2 Mounting on PCB
BLL light source is designed to be mounted on a PCB. Recommended PCB drilling outline is shown below:

Figure 4. Recommended PCB drilling layout. Dimensions are in millimeters [inches].

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BLL OEM Light Source Preliminary Product Description

3.3 Mounting on Superlum Evaluation Board

Figure 5. BLL Light Source mounted on a BLL evaluation Board.

BLL Light Source can be mounted on a Superlum BLL Evaluation Board to enable external USB control.
Refer to the BLL companion software for remote control via computer using the USB port. The computerinterface fitted to this device is a non-standard USB interface. It provides a virtual COM port for remotecontrol via USB connection.
A summary of the most relevant remote-control features (also those available with SUPERLUM’s companionsoftware) are given in Table 3 below:
Table 3. Remote control features via BLL Connectivity Board.
USB (virtual COM port)- ON/OFF control of the optical output;- SLD module ON/OFF control;- Monitoring of relevant driving parameters of SLD module;- Self-test option – remote diagnostics feature;- Controlling of optical performance.

3.3 Safety Considerations
Superlum OEM light source modules are sold as components. Therefore, they are not required to conform toEuropean or U.S. safety regulations and rules in force in any other country/destination. The buyer/user's
responsibility is to design and certify any equipment incorporating any OEM source of Superlum to meet all
local safety regulations before sale to the public. The texts of these regulations are available from thecountries' respective governing bodies where the equipment is to be sold.
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BLL OEM Light Source Preliminary Product Description
All Superlum OEM light source modules except the models with emission wavelength below 690 nm emit
invisible radiation. They have a potential laser safety hazard classified as CLASS 3R or 3B under IEC 608251:2014. Superlum OEM light source modules may not have ALL the required laser safety features in terms ofIEC 60825-1 like remote interlock, key-operated master control, warning signals, and labels. Superlum OEM
light source modules are designed for integration into other equipment. It is the Buyer/User's responsibility todevelop and certify any equipment incorporating any OEM source of Superlum to meet all local safety
regulations and applicable standards.

The Light Source is designed for integration into an OEM application and, as such, is outside the scope oflaser safety standards. The BLL Light Source is not supplied with laser safety devices, e.g., key-operated
master control.
Please contact Superlum for more details about laser safety and other safety issues of each light source
module P/N.

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BLL OEM Light Source Preliminary Product Description

APPENDIX ABLL UART Command Protocol

UART configuration:
Baud Rate = 57600;
Start Bits = 1;
Stop Bits = 1;
Parity = None;
Flow Control = None.

1

SYSTEM COMMANDS

1.1 Read Light Source type, firmware version and serial number
Request:Acknowledge:
Error message:[I] [CR] [LF]
[I] [:] [TYPE] [:] [VH] [VL] [:] [SN] [CR] [LF][!] [E] [CR] – common error message.

[CR] [LF] – line termination sequence ([CR] – ASCII13, [LF] – ASCII10)[TYPE] – Light Source type, five ASCII printable chars:“BLC-S” – one channel Light Source;“BLC-D” – two channels Light Source;“BLC-T” – three channels Light Source;“BLC-E” – one channel Light Source with electronic output power control function.
[VH] – Major part of firmware version [0…9], one ASCII chars;[VL] – Minor part of firmware version [0…9], one ASCII chars;[SN] – Serial number, six ASCII printable chars.

1.2 Set Light Source operation mode. Read current mode.
Request:Acknowledge:
Error message:[M] [CMD] [CR] [LF]
[M] [MODE] [CR] [LF][!] [E] [CR] [LF] – common error message.

[CMD]
[?]
[L]
[U]

DESCRIPTION
Read current mode
Set LOCAL mode
Set UART CTRL mode

[MODE][L][U][E]

DESCRIPTION
Device operated in LOCAL mode
Device operated in UART CTRL mode
FATAL ERROR mode

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BLL OEM Light Source Preliminary Product Description
2

UART CTRL MODE COMMANDS [U]

2.1 Switch SLD ON/OFF. Read Channel status data
Request:Acknowledge:
Error message:[U] [C] [CH] [CR] [LF]
[U] [C] [IL] [ST1] [CR][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[CH]
[?]
[1]
[9]

DESCRIPTION
Read CH status data
Switch SLD ON/OFF
Switch SLD ON/OFF[IL] – Remote interlock data [0] or [1]:[0] – output disabled;[1] – output enabled.
[ST1] – Channel 1 status, [00…FF], two ASCII chars in hexadecimal code. See table below for signal
identification.
SIGNALBITOME

0TON

1TGD

2TER

3SMD

4SON
SLM
SER

567

DESCRIPTION‘1’ – Optical module enabled‘0’ – Optical module disabled‘1’ – TEC ON; ‘0’ – TEC OFF‘1’ – Optical module temperature stabilized‘0’ – Optical module temperature not stabilized‘1’ – TEC (Thermistor) error‘1’ – SLD operated in ACC mode‘0’ – SLD operated in APC mode
‘1’ – SLD ON; ‘0’ – SLD OFF‘1’ – SLD current limit reached‘1’ – SLD error

2.2 Switch control
Request:Acknowledge:
Error message:[U] [S] [CMD] [CR] [LF]
[U] [S] [SWDATA] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[CMD]
[?]
[1]
[5]
[6]
[7]
[S]

DESCRIPTION
Read current Switch Data
Switch Channel #1 (CH1)
Enabling / Disabling Interlock
Enabling / Disabling REMOTE port
Enabling / Disabling External Modulation
Store current Switch Data to EEPROM[SWDATA] – Switch status, [00…FF], two ASCII chars in hexadecimal code. See table below for signal
identification

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BLL OEM Light Source Preliminary Product Description[SWDATA]DESCRIPTION‘1’ – Channel #1 (CH1) enabled‘0’ – Channel #1 (CH1) disabled
Reserved, reads as null
Reserved, reads as null
Reserved, reads as null
‘1’ – Interlock enabled‘0’ – Interlock disabled‘1’ – REMOTE port enabled‘0’ – REMOTE port disabled‘1’ – External Modulation enabled‘0’ – External Modulation disabled‘1’ – Output Power Monitor enabled‘0’ – Output Power Monitor disabled

Bit#0
Bit#1
Bit#2
Bit#3
Bit#4
Bit#5
Bit#6
Bit#7

2.3 Measure optical module parameter (read data from ADC)
Request:Acknowledge:
Error message:[U] [M] [CH] [PN] [CR] [LF]
[U] [M] [CH] [PN] [ADATA] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[CH] – Channel number [1], one ASCII character;[PN] – Parameter number [1…8], one ASCII character;[ADATA] – Parameter value [0000…FFFF], four ASCII characters in hexadecimal code.
[PN]

DESCRIPTIONADATA RANGE

1Real TEC current

2

SLD current (maximum current) set value

3
4

Optical module photo-diode current (HP)set value
Optical module photo-diode current (LP)set value

5

Real Optical module temperature value

6

Real SLD current value

7

Real PD current value

8

Optical module temperature set point value[0000] = 0,00A[00FF] = +2,55A[0101] = -0,01A[01FF] = -2,55A[0000]=0,00 mA[FFFE]=655,34mA[0000]=0,0µA[FFFE]=6553,4µA[0000]=0,0µA[FFFE]=6553,4µA[0000]=0Ω[FFFE]=65534Ω[0000]=0,00 mA[FFFE]=655,34mA[0000]=0,0µA[FFFE]=6553,4µA[0000]=0Ω[FFFE]=65534Ω

Note - ADATA overload string is [FFFF].

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BLL OEM Light Source Preliminary Product Description
2.4 Read optical module parameter
Request:[U] [P] [MN] [PN] [CR] [LF]
Acknowledge: [U] [P] [MN] [PN] [DATA] [CR] [LF]
Error message: [!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.
[MN] – Optical module number, [1] (One ASCII character);[PN] – Parameter number, [0…9] (One ASCII character);[DATA] – Parameter data see table below.

[PN]

Description

DATA Range01

Optical module serial number
Optical module operation mode2

Optical module temperature set pointvalue
Optical module maximum current
value
Optical module current value

345679Optical module photo-diode current
value (HP)
Optical module photo-diode current
value (LP)
Optical module photo-diode current
maximum value
Optical module operating time

Comments[XXXXXX][0] or [1], one ASCIIchar[0000…FFFE], four
ASCII chars[0000…270F], four
ASCII chars[0000…270F], four
ASCII chars[0000…270F], four
ASCII chars[0000…270F], four
ASCII chars[0000…270F], four
ASCII chars

Six ASCII printable characters[0] – APC mode[1] – ACC mode
[0000] = 0 ohm[FFFF] = 65534 ohm[0000] = 0,0 mA[270F] = 999,9 mA[0000] = 0,0 mA[270F] = 999,9 mA[0000] = 0 µA
[270F] = 9999 µA[0000] = 0 µA
[270F] = 9999 µA[0000] = 0 µA
[270F] = 9999 µA[00000000][FFFFFFFF],
Eight ASCII chars

00000000 – 0 s;
0000000A – 10 s;….

2.5 Read optical module parameter (factory data)
Request:Acknowledge:
Error message:[U] [F] [MN] [PN] [CR] [LF][U] [F] [MN] [PN] [DATA] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[MN] – Optical module number, [1] (One ASCII character);[PN] – Parameter number, [0…8] (One ASCII character);[DATA] – Parameter data. See table 2.4 above for details.

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BLL OEM Light Source Preliminary Product Description
2.6 Adjust optical module parameter
Request:Acknowledge:
Error message:[U] [J] [MN] [PN] [DATA][CR] [LF]
[U] [J] [MN] [PN] [DATA] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[MN] – Optical module number, [1] (One ASCII character);[PN] – Parameter number, [4] or [5] (One ASCII character);[DATA] – Parameter data. See table 2.4 above for details.
2.7 Store adjusted optical module parameters in EEPROM
Request:Acknowledge:
Error message:[U] [E] [CR] [LF]
[U] [E] [Y] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[Y] – Result of data storing:‘1’ – all right;‘0’ – data storing error.
2.8 Read temperature and output power
Request:Acknowledge:
Error message:[U] [T] [CR] [LF]
[U] [T] [TV] [PV] [CR] [LF][!] [E] [CR] [LF] – common error message;[!] [M] [CR] [LF] – wrong mode set message.

[TV] – Temperature value [00…FF], two ASCII chars in hexadecimal code in two’s complement form:[7F] = +127 ºC;[00] = 0 ºC;[FF] = -1 ºC;[81] = -127 ºC;[80] - no temperature sensor installed or temperature sensor error.
[PV] – Output power value [000…FFF], three ASCII chars in hexadecimal code.
[000] = 0 mW;[FFF] = 409,5 mW.

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