Study on a Precise Frequency Comparison System using an Optical Carrier

Wada Masato, Watabe Ken-ichi, Okubo Sho, Suzuyama Tomonari, Hong Feng-Lei, Amemiya Masaki

doi:10.1541/ieejeiss.134.526

Bibliographic Information

Other Title

光キャリアを用いる高精度周波数比較システムの検討
ヒカリキャリアオモチイルコウセイドシュウハスウヒカクシステムノケントウ

Search this article

Description

We have investigated the performance of an optical carrier transfer system for a remote comparison of optical clocks. In the frequency transfer system, technical problems and fundamental principles limit the coherent transfer on a long-haul optical fiber. They contribute to noise processes that come from the propagation delay in the fiber, the design of an interferometer, burst length fluctuations of the fiber, asymmetrical propagation characteristics, and so on. The feasibility of a full optical link with high stability is discussed. The phase detection with a high degree of precision and cancellation of the fiber-induced noise on the round-trip light are achieved with a well-known standard technique using an all-fiber-based interferometer. We report the characteristics of these noise processes with results on a spooled fiber. An Allan deviation of the compensated link which is extended to 90 km reaches 5 × 10^-18 close to the theoretical limit imposed by the delay-unsuppressed fiber noise at averaging time of 10³s.

Journal

IEEJ Transactions on Electronics, Information and Systems

IEEJ Transactions on Electronics, Information and Systems 134 (4), 526-533, 2014

The Institute of Electrical Engineers of Japan

Keywords

Details 詳細情報について

Export