Xiangmei Ding, Lehai Zhong, Jingting Dong, Jiang Yang. Development of analog temperature control and detection system for distributed feedback laser[J]. High Power Laser and Particle Beams, 2021, 33(11): 111014
- High Power Laser and Particle Beams
- Vol. 33, Issue 11, 111014 (2021)
Fig. 1. Block diagram of temperature control system
Fig. 2. Temperature detection circuit
Fig. 3. Error amplifying circuit
Fig. 4. PID compensation circuit
Fig. 5. TEC drive circuit diagram
Fig. 6. TEC drive simulation circuit diagram
Fig. 7. LD temperature monitoring circuit diagram
Fig. 8. Test block diagram of DFB laser temperature control system
Fig. 9. Photo of temperature test verification platform
Fig. 10. Three-temperature data curve of 5 LDs
Fig. 11. Three-temperature optical power curve of 5 LDs
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Table 1. Test data table of 5 LDs at 25 ℃
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Table 2. Three-temperature environment test data table of 5 LDs
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