Aerospace Grade Four Channel Dual Frequency Semiconductor Laser
The product module contains four lasers with two wavelength frequencies, each frequency containing a local oscillator laser and a signal laser. Four lasers can flexibly switch control switches for enabling and frequency tuning. It has achieved high frequency stability, narrow linewidth, low RIN noise, laser output, tunable wavelength, good adaptability in high and low temperature environments, radiation resistance, and can cope with single particle effects. It has high reliability and good stability. Mainly used for space laser coherent communication, it can achieve real-time compensation for Doppler frequency shift.
Application Scenarios:
Satellite laser communication, coherent optical communication
Performance Indicators:
|
Serial number |
Parameter |
Technical Indicators |
|
1 |
Center wavelength |
1540.56nm, 1563.05nm (typical values, customizable) |
|
2 |
Output power |
5mW~10mW |
|
3 |
Laser wavelength accuracy |
±1pm |
|
4 |
Laser linewidth |
≤10kHz |
|
5 |
Laser mode |
Single longitudinal mode, basic transverse mode |
|
6 |
Polarization type |
Linear polarization |
|
7 |
Side-Mode suppression ratio |
>50dB |
|
8 |
Polarization extinction ratio |
20dB |
|
9 |
Frequency stability of two laser beat signals |
Better than 0.1MHz/s |
|
10 |
Relative intensity noise |
≤-140dBc/ Hz@10kHz |
|
11 |
Tuning range |
± 0.05nm (with two center wavelengths as zeros) |
|
12 |
Tune resolution |
Better than 5MHz |
|
13 |
Tuning speed |
≥100MHz/s |
|
14 |
Tune response time |
≤50ms |
|
15 |
Connectors |
Single mode polarization maintaining fiber, FC/APC |
|
16 |
Weight |
Not exceeding 0.5kg |
|
17 |
Power consumption |
Not exceeding 6W |
|
18 |
Working temperature |
5℃~+50℃ |
|
19 |
Storage temperature |
-40℃~+85℃ |
|
20 |
Total radiation dose index |
≥30krad（Si） |
Structural Dimensions:
Pin Definition:
Interface: J30J-15-TJL
|
Contact Number |
Signal Function |
Go There |
Voltage |
Polarity |
Remarks |
|
1 |
Empty |
|
|
|
|
|
2,9 |
Power Supply |
Secondary power module |
5.4V |
+ |
Main line |
|
3,10 |
Empty |
|
|
|
|
|
4,11 |
Power return line |
Secondary power module |
0 |
Ground/Digital Ground |
loop |
|
5,12 |
Empty |
|
|
|
|
|
6,13 |
Laser telemetry and remote control Tx |
Modulation and demodulation module |
3.3V |
+ |
LVTTL |
|
7,14 |
REST |
|
|
|
Hardware reset |
|
8,15 |
Laser telemetry and remote control Rx |
Modulation and demodulation module |
3.3V |
+ |
LVTTL |
