Ultrastable Frequency Dissemination via Optical Fiber at NICT

被引：68

作者：

Fujieda, Miho ^{[1
]}

Kumagai, Motohiro ^{[1
]}

Gotoh, Tadahiro ^{[1
]}

Hosokawa, Mizuhiko ^{[1
]}

机构：

[1] Natl Inst Informat & Commun Technol, Koganei, Tokyo 1848795, Japan

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2009年 / 58卷 / 04期

关键词：

Fiber noise cancellation; frequency stability; optical fiber applications; optical fiber link; phase measurement; radio frequency (RF) transfer;

D O I：

10.1109/TIM.2008.2008088

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have developed a radio-frequency (RF) dissemination system using optical fibers. The phase noise induced during the transmission is actively cancelled by the compensation system with a voltage-controlled crystal oscillator. A first proving test was conducted on an urban telecom fiber link with a length of 10 km, and a frequency stability of 1 x 10(-17) was achieved at an averaging time of one day. As an application of ultrastable frequency dissemination, a 1-GHz signal based on a cryogenic sapphire oscillator was transferred through a 25-km fiber and used as a microwave reference for an optical frequency comb. A fractional frequency stability of an ultranarrow clock laser for a Ca+ ion optical frequency standard was measured by the comb as 9 x 10(15) at 1 s, which included both laser stability and transferred reference stability.

引用

页码：1223 / 1228

页数：6

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