TY - GEN
T1 - Stable fiber delivery of terahertz wave signal by fast phase compensation system
AU - Wang, Xiaocheng
AU - Liu, Zhangweiyi
AU - Sun, Dongning
AU - Dong, Yi
AU - Hu, Weisheng
PY - 2014/11/14
Y1 - 2014/11/14
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85088746124&partnerID=8YFLogxK
U2 - 10.1364/acpc.2014.af4b.2
DO - 10.1364/acpc.2014.af4b.2
M3 - Conference contribution
AN - SCOPUS:85088746124
T3 - Asia Communications and Photonics Conference, ACPC 2014
BT - Asia Communications and Photonics Conference, ACPC 2014
PB - Optical Society of America (OSA)
T2 - Asia Communications and Photonics Conference, ACPC 2014
Y2 - 11 November 2014 through 14 November 2014
ER -