期刊
OPTICS LETTERS
卷 47, 期 21, 页码 5457-5460出版社
Optica Publishing Group
DOI: 10.1364/OL.472278
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类别
资金
- Office of Naval Research
We present a method to suppress wavelength drift in a semiconductor laser using filtered optical feedback from a long fiber-optic loop. By actively controlling the phase delay of the feedback light, the laser wavelength is stabilized to the filter peak. Experimental results show a significant reduction in wavelength drift compared to cases without phase delay control.
We present a method to suppress the wavelength drift of a semiconductor laser with filtered optical feedback from a long fiber-optic loop. The laser wavelength is stabilized to the filter peak through actively controlling the phase delay of the feedback light. Steady-state analysis of the laser wavelength is performed to illustrate the method. Experimentally, the wavelength drift was reduced by 7550 compared to the case without phase delay control. The active phase delay control had negligible effect on the line narrowing performance of the filtered optical feedback to the limit of the measurement resolution. (C) 2022 Optica Publishing Group
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