Coherence transfer of subhertz-linewidth laser light via an 82-km fiber link

Chaoqun Ma; Lifei Wu; Yanyi Jiang; Hongfu Yu; Zhiyi Bi; Longsheng Ma

doi:10.1063/1.4937566

Coherence transfer of subhertz-linewidth laser light via an 82-km fiber link

Chaoqun Ma
, Lifei Wu
, Yanyi Jiang^*
, Hongfu Yu
, Zhiyi Bi
, Longsheng Ma

^*Corresponding author for this work

Institute for Advanced Study in Precision Spectroscopy

East China Normal University

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

We demonstrate optical coherence transfer of subhertz-linewidth laser light through fiber links by actively compensating random fiber phase noise induced by environmental perturbations. The relative linewidth of laser light after transferring through a 32-km urban fiber link is suppressed within 1 mHz (resolution bandwidth limited), and the absolute linewidth of the transferred laser light is less than 0.36 Hz. For an 82-km fiber link, a repeater station is constructed between a 32-km urban fiber and a 50-km spooled fiber to recover the spectral purity. A relative linewidth of 1 mHz is also demonstrated for light transferring through the 82-km cascaded fiber. Such an optical signal distribution network based on repeater stations allows optical coherence and synchronization available over spatially separated places.

Original language	English
Article number	261109
Journal	Applied Physics Letters
Volume	107
Issue number	26
DOIs	https://doi.org/10.1063/1.4937566
State	Published - 28 Dec 2015

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title = "Coherence transfer of subhertz-linewidth laser light via an 82-km fiber link",

abstract = "We demonstrate optical coherence transfer of subhertz-linewidth laser light through fiber links by actively compensating random fiber phase noise induced by environmental perturbations. The relative linewidth of laser light after transferring through a 32-km urban fiber link is suppressed within 1 mHz (resolution bandwidth limited), and the absolute linewidth of the transferred laser light is less than 0.36 Hz. For an 82-km fiber link, a repeater station is constructed between a 32-km urban fiber and a 50-km spooled fiber to recover the spectral purity. A relative linewidth of 1 mHz is also demonstrated for light transferring through the 82-km cascaded fiber. Such an optical signal distribution network based on repeater stations allows optical coherence and synchronization available over spatially separated places.",

author = "Chaoqun Ma and Lifei Wu and Yanyi Jiang and Hongfu Yu and Zhiyi Bi and Longsheng Ma",

note = "Publisher Copyright: {\textcopyright} 2015 AIP Publishing LLC.",

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T1 - Coherence transfer of subhertz-linewidth laser light via an 82-km fiber link

AU - Ma, Chaoqun

AU - Wu, Lifei

AU - Jiang, Yanyi

AU - Yu, Hongfu

AU - Bi, Zhiyi

AU - Ma, Longsheng

PY - 2015/12/28

Y1 - 2015/12/28

N2 - We demonstrate optical coherence transfer of subhertz-linewidth laser light through fiber links by actively compensating random fiber phase noise induced by environmental perturbations. The relative linewidth of laser light after transferring through a 32-km urban fiber link is suppressed within 1 mHz (resolution bandwidth limited), and the absolute linewidth of the transferred laser light is less than 0.36 Hz. For an 82-km fiber link, a repeater station is constructed between a 32-km urban fiber and a 50-km spooled fiber to recover the spectral purity. A relative linewidth of 1 mHz is also demonstrated for light transferring through the 82-km cascaded fiber. Such an optical signal distribution network based on repeater stations allows optical coherence and synchronization available over spatially separated places.

AB - We demonstrate optical coherence transfer of subhertz-linewidth laser light through fiber links by actively compensating random fiber phase noise induced by environmental perturbations. The relative linewidth of laser light after transferring through a 32-km urban fiber link is suppressed within 1 mHz (resolution bandwidth limited), and the absolute linewidth of the transferred laser light is less than 0.36 Hz. For an 82-km fiber link, a repeater station is constructed between a 32-km urban fiber and a 50-km spooled fiber to recover the spectral purity. A relative linewidth of 1 mHz is also demonstrated for light transferring through the 82-km cascaded fiber. Such an optical signal distribution network based on repeater stations allows optical coherence and synchronization available over spatially separated places.

UR - https://www.scopus.com/pages/publications/84954048119

U2 - 10.1063/1.4937566

DO - 10.1063/1.4937566

M3 - 文章

AN - SCOPUS:84954048119

SN - 0003-6951

VL - 107

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

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ER -

Coherence transfer of subhertz-linewidth laser light via an 82-km fiber link

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