LD-PD's compact DBR Laser Diode Driver is a compact all-in-one unit designed for convenience of use, and combines a user interchangeable mount for our DBR laser diode, a current driver and a TEC controller, all in a self-contained enclosure.Also we include Grating current interface and Phase current interface.This product includes a USB port and a software control application with a graphical user interface (GUI) for real-time device monitoring, control and data logging.
This Driver is used with either a 14-pin butterfly mount (provided with Type I, Type II and custom pin out routing boards) . The mounts are user-interchangeable and are sold separately from the base unit.
Drive power function and parameters
Figure 1: Appearance of the drive power supply
Figure 2: Laser pin definition
Note: Gain, Grating and Phase share the third pin COM- as the negative pole, and the driving mode is CG (cathode grounding)
Absolute Maximum Ratings
Absolute Maximum Ratings
Laser section
Current Operation
Range, C.W. (mA)
Absolute Maximum Ratings
Current ( mA )
Voltage ( V )
Gain
100-250
350
2.0
Rear Grating
0-90
120
2.0
Phase Tuning
0-5
10
2.0
Figure 3: Laser driving limit parameters
Parameters Table：
Item
Parameter
Remark
Voltage
220VAC
Power frequency
50/60Hz
GAIN Pole drive
GAIN drive signal source
inside/outside/insid e+outside
The default internal signal can be selected by the host computer
Internal modulation signal period
DC or sawtooth wave
Sawtooth cycle 20-200ms
Maximum driving voltage
5V
Over voltage protection4V
Drive current range
0-300mA
Maximum limit300mA
External laser modulation signal
Port input impedance
5k
External laser modulation signal Response frequency range
DC-500kHz
External modulation signal
Conversion factor
100mA/V
External modulation signal
Maximum value
3V
Internal limit 300mA corresponds to 3V
Grating pole drive
Driving signal source
external
BNC interface
Maximum driving voltage
5V
Drive current range
0-100mA
Maximum limit 100mA, fixed internally
External laser modulation signal
Port input impedance
5k
External laser modulation signal Response frequency range
DC-500kHz
External modulation signal
Conversion factor
100mA/V
External modulation signal
Maximum value
1V
Internal limit maximum 100mA corresponds to 1V
Driving signal source
External
BNC interface
PHASE pole drive
Maximum driving voltage
5V
Drive current range
0-7.5mA
Maximum limit 7.5mA, fixed internally
External laser modulation signal Port input impedance
5k
External laser modulation signal Response frequency range
DC-500kHz
External modulation signal
Conversion factor
10mA/V
External modulation signal
Maximum value
0.75V
The maximum internal limit is 7.5mA corresponding to 0.75V
GAIN current monitoring
GAIN current monitor output conversion factor
10V/A
100mA=1V
GAIN Current Monitor Output Port Impedance
1k
TEC drive
TEC drive limit current (low)
0.6A
Switch optional
TEC Drive Limit Current (High)
1.2A
TEC maximum voltage
5V
NTC
10k@25℃
B value 3930
Maximum laser protection temperature
60.0℃
If the protection temperature is exceeded, the power base will turn off the laser, turn off the TEC and lock it, and it can only be released by restarting the power supply after troubleshooting.
Minimum laser protection temperature
2.0℃
Maximum laser set temperature
50.0℃
Panel buttons or host computer settings
Minimum laser set temperature
5.0℃
Temperature protection window
5℃
The difference between the measured temperature and the set temperature exceeds 5°C,
Automatically turn off the laser or prohibit the laser from turning on
Installation interface
Butterfly mount
Panel display
Set temperature value; Actual temperature value; Laser voltage value; GAIN signal source;
PC port
Type B USB interface, you can use the host computer to set the output parameters of the drive seat
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1550nn DBR Laser Diode Driver.pdf
