期刊
OPTICS LETTERS
卷 45, 期 15, 页码 4308-4311出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.393010
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资金
- National Natural Science Foundation of China [61905143, 61627817, 61535006]
- State Grid Corporation of China [SGSHJX00KXJS1901531]
We report on the realization of an optical phase noise cancellation technique by passively embedding the optical phase noise information into a radio frequency signal and creating a copy of the optical frequency signal, which is pre-corrected by the amount of phase noise introduced by optical phase perturbations. Neither phase discrimination nor an active servo controller is required due to the open-loop design, mitigating some technical problems, such as the limited compensation speed and finite phase/timing jitter, in conventional phase noise cancellation. We experimentally demonstrate that this technique maintains the same delay-limited bandwidth and phase noise suppression capability as in conventional techniques, but significantly shortens the response speed and phase recovery time. Passive decoupling optical phase perturbation represents a powerful technique in the domains of optical frequency standard comparisons and tools for future optical atomic clocks, which are now under investigation for a potential redefinition of the International Time Scale. (C) 2020 Optical Society of America
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