Cycle-Slip-Free Fiber Length Stabilization System Abstract
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ALMA Memo # 511
Cycle-Slip-Free Fiber Length Stabilization System Using a Digital Phase and Frequency Discriminator
Yohei Sato, Mitsuru Musha, Ken'ichi Nakagawa, Ken-ichi Ueda, Akitoshi Ueda, Masato Ishiguro
2004-12-15
Abstract: We have developed a fiber length stabilization system (FLSS) for the photonic distribution of LO signals by using a digital phase and frequency discriminator (DPFD). Compared with a conventional analog double-balanced mixer (DBM) or a phase sensitive detector with an XOR gate (PSD), the DPFD has wider linear discrimination range by more than 1000 times, which enables cycle-slip-free FLSS. Moreover, it makes possible to stabilize the length of the fiber that is longer than the coherent length of the light source used in FLSS.
View a pdf version of ALMA Memo #511.
