Yuanhuang LIU, Shanshan WEI, Yujun CHEN, Bo YAO, Qinghe MAO. Relaxation oscillation noise suppression in a DBR single-longitudinal-mode fiber laser using optoelectronic feedback[J]. Chinese Journal of Quantum Electronics, 2023, 40(5): 677
- Chinese Journal of Quantum Electronics
- Vol. 40, Issue 5, 677 (2023)
Fig. 1. Experimental setup for suppressing intensity noise of single-longitudinal-mode DBR fiber laser with photoelectric feedback
Fig. 2. (a) Relative intensity noise (RIN) of laser in different pump power; (b) Frequency response characteristics of laser's pump transfer function
Fig. 3. (a) Frequency response characteristic of PI servo controller; (b) Frequency response characteristic of the first-order phase shift network
Fig. 4. Frequency response of the system open loop transfer function
Fig. 5. Relative intensity noise spectra of single-longitudinal-mode DBR fiber laser before and after suppression
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