Indirect stabilization of optical frequency transfer over fiber by polarization and wavelength-division multiplexing
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Author
Blum, Roman
Denis, Séverine
Karlen, Lauriane
Kundermann, Stefan
Karlen, Sylvain
Lecomte, Steve
DOI
Abstract
Optical fiber links have emerged as a popular solution to the problem of high-stability frequency transfer over distances ranging from several meters to intercontinental scale. Often, the Doppler cancellation scheme is used to stabilize the link by compensating acoustic and thermal noise along the fiber. Here, we present the implementation of a 184-meter fiber link that employs Doppler cancellation using a primary signal at 1560.0 nm wavelength. In addition, we multiplex a secondary signal at 1556.2 nm wavelength. This secondary signal is demonstrated to benefit from significant indirect stabilization. Such a scheme is useful in frequency metrology for the simultaneous transfer of two distinct optical frequencies over the same fiber link.
Publication Reference
EFTF 2024 - 37th Edition of the European Frequency and Time Forum, Neuchâtel (Switzerland)
Year
2024-06-27