A new optical frequency transfer method via fibre based on active phase noise compensation with single acousto-optic modulator

In this paper, we propose and experimentally demonstrate a new method for optical frequency transfer over fibre. Instead of dual acousto-optic modulators (AOMs) as adopted in the traditional fibre phase noise compensation setup, here an active fibre phase noise compensation scheme with a single acou...

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Bibliographic Details
Published in:Metrology and Measurement systems 2019-01, Vol.26 (1), p.115-124
Main Authors: Wang, Guoyong, Yao, Yuanbo, Yan, Tao, Bian, Lang, Meng, Yansong
Format: Article
Language:English
Subjects:
Acousto-optics
Acoustooptical devices
Compensation
Frequency stability
Modulators
Noise
Optical frequency
Optics
Phase noise
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Summary:In this paper, we propose and experimentally demonstrate a new method for optical frequency transfer over fibre. Instead of dual acousto-optic modulators (AOMs) as adopted in the traditional fibre phase noise compensation setup, here an active fibre phase noise compensation scheme with a single acousto-optic modulator (AOM) is used. The configuration simplifies the equipment of the user end while maintaining a high-performance optical frequency transfer stability. We demonstrate an actively stabilized coherent transfer at an optical frequency of 193.55THz over 10-km spooled fibre, obtaining a relative frequency stability (Allan deviation) of 3:84 ? 10 16/1 s and 4:08 ? 10 18/104 s, which is improved by about 2?3 orders of magnitude in comparison with the one without any phase noise compensation that achieves a relative frequency stability of 1:81 ? 10 14/1 s and 2:48 ? 10 15/104 s.
ISSN:2300-1941
2080-9050
2300-1941
DOI:10.24425/mms.2019.126334