Chao Wei, Fenghong Chu, Zhenglan Bian, Fang Wei. Radio frequency modulation characteristics and application of short coherent semiconductor laser[J]. Infrared and Laser Engineering, 2023, 52(4): 20220553
- Infrared and Laser Engineering
- Vol. 52, Issue 4, 20220553 (2023)
Fig. 1. LD linewidth broadening scheme
Fig. 2. Experimental setup of short coherent light source
Fig. 3. P -I characteristic curve of FP laser
Fig. 4. Effect of bias current on coherent length
Fig. 5. Effect of RF signal frequency on coherence length
Fig. 6. Effect of RF signal amplitude on coherence length
Fig. 7. LD output spectrum before and after RF modulation
Fig. 8. Experimental setup of parallel plate glass interferometry based on short coherent light source
Fig. 9. Interference image of transparent parallel plate glass surface. (a) Unmodulated 637 nm laser source; (b) RF modulated 637 nm laser source in this paper; (c) Other short coherent laser source
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