The High Power COS Testing Machine is a fully enclosed, integrated test platform designed for comprehensive characterization of high-power laser diode COS (Chip on Submount) devices, including pump lasers and industrial lasers. It combines a precision CW & Pulse current source (0~3A / 0~1A) with optical power measurement, spectrum analysis (600~1700nm), far-field scanning, polarization extinction ratio (PER) testing, and TEC-based temperature control (20~100℃) in a single sealed chamber with a settable test environment temperature of 0~100℃. The machine supports LIV, PER, spectrum and far-field tests in one station, and its test fixtures are fully compatible with burn-in machines, enabling seamless process flow from device testing to aging.
| Parameter | Value |
| Output Mode | CW & Pulse |
| Output Current Range | 0~3A / 0~1A |
| Adaptive Voltage Range | 0~7V / 0~18V |
| Output Current Accuracy | 0.05%+1.5mA(@3A) |
| Output Current Resolution | <0.01mA |
| Optical Power Measurement Range | <5W |
| Optical Power Measurement Accuracy | ±0.001mW |
| Spectrum Measurement Wavelength Range | 600~1700nm |
| Far-field Scan Range | ±40° / ±70° |
| Far-field Scan Resolution | 0.05° |
| Polarization Extinction Ratio Scan Range | 360° |
| Polarization Extinction Ratio Wavelength Range | 450~1000 / 620~1000 |
| Temperature Control Method | TEC |
| Temperature Control Range | 20~100℃(低温受热功率影响) |
| Temperature Accuracy | ±1℃ |
| Temperature Stability | 0.1℃ |
| Test Environment Temperature | 0~100℃ |
1. High-power laser diode COS (Chip on Submount) performance verification and screening 2. Pump laser diode testing and characterization 3. Industrial laser COS testing and quality control 4. LIV (Light-Current-Voltage) characteristic testing 5. Optical spectrum analysis of laser diodes 6. Far-field divergence angle measurement 7. Polarization extinction ratio (PER) testing 8. Temperature-dependent performance evaluation of laser devices
1. Fully enclosed chamber design with settable test environment temperature from 0~100℃ 2. All-in-one capability supporting LIV, PER, spectrum and far-field testing 3. Pump and industrial laser COS processing capability 4. Test fixtures universally compatible with burn-in machines for streamlined workflow 5. CW & Pulse dual output modes with 0~3A / 0~1A current range 6. High-precision current source with accuracy of 0.05%+1.5mA(@3A) and resolution <0.01mA 7. Accurate optical power measurement up to <5W with ±0.001mW precision 8. Wide spectral coverage of 600~1700nm and far-field scanning up to ±70° 9. TEC temperature control with ±1℃ accuracy and 0.1℃ stability
<p>Leishen Technology (Shenzhen) Co., Ltd. was established in October 2017. It is headquartered in Yufengda Industrial Park, Guangming District, Shenzhen. It has an existing factory area of about 38,000 square meters and an annual production capacity of 2,000+ units. It is a company dedicated to optical communications, semiconductors, and lasers. Optoelectronic chip manufacturing and packaging companies in the fields of processing, lidar and other fields provide precision automated test aging, optical path assembly equipment and systematic solutions. It is now a national specialized and new "little giant" enterprise, a national high-tech enterprise, and a Shenzhen gazelle enterprise.</p>