Stable fiber delivery of terahertz wave signal by fast phase compensation system

Xiaocheng Wang, Zhangweiyi Liu, Dongning Sun, Yi Dong*, Weisheng Hu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate a terahertz wave signal remote dissemination system, which transfers a phase-stabilized 1THz signal over 40 km urban telecom fiber link. The phase fluctuation induced by the separate path and optical fiber transmission is detected by dual-heterodyne phase error transfer and compensated with fast response acousto-optic frequency-shifter. Moreover, the feedback network is designed with frequency independent in mind such that signal processing is performed at intermediate frequency rather than radio frequency. At laboratory tests, the residual phase noise of the remote 1THz signal is measured to be -35 dBc/Hz at 1 Hz offset, and long-term stability of 1×10-15 at 1000s averaging time is achieved.

Original languageEnglish
Title of host publicationAsia Communications and Photonics Conference, ACPC 2014
PublisherOptical Society of America (OSA)
ISBN (Electronic)9781557528520
DOIs
Publication statusPublished - 14 Nov 2014
Externally publishedYes
EventAsia Communications and Photonics Conference, ACPC 2014 - Shanghai, China
Duration: 11 Nov 201414 Nov 2014

Publication series

NameAsia Communications and Photonics Conference, ACPC 2014

Conference

ConferenceAsia Communications and Photonics Conference, ACPC 2014
Country/TerritoryChina
CityShanghai
Period11/11/1414/11/14

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