Coherent Optical Frequency Domain Reflectometry for a Long Single-Mode Optical Fiber Using a Coherent Lightwave Source and an External Phase Modulator

Kohji Tsuji, Kaoru Shimizu, Tsuneo Horiguchi, Yahei Koyamada

研究成果: Article査読

46 被引用数 (Scopus)

抄録

Coherent optical frequency domain reflectometry (C-OFDR) is demonstrated for a long single-mode optical fiber at a wavelength of 1.55 µm by using a highly coherent lightwave source and an electrooptical (EO) external phase modulator. Rayleigh backscattering and Fresnel reflection from a 16.4-km optical fiber are observed when the modulation frequency is swept from 4 GHz to 8 GHz for 40 ms. The insertion of an optical fiber delay line in a probe lightwave path makes it possible to distinguish the Rayleigh backscattering profile due to the first-order modulation sideband in the phase-modulated lightwave from those due to the higher order sidebands. A spatial resolution of better than 100 m is achieved for two neighboring Fresnel reflectors located near the far end of the test fiber.

本文言語English
ページ(範囲)804-806
ページ数3
ジャーナルIEEE Photonics Technology Letters
7
7
DOI
出版ステータスPublished - 1995 7

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 電子工学および電気工学

フィンガープリント

「Coherent Optical Frequency Domain Reflectometry for a Long Single-Mode Optical Fiber Using a Coherent Lightwave Source and an External Phase Modulator」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル