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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 27 — Dec. 19, 2011
  • pp: 26928–26935

Fiber optical CATV transport systems based on PM and light injection-locked DFB LD as a duplex transceiver

Heng-Sheng Su, Chung-Yi Li, Wen-Yi Lin, Hai-Han Lu, Ching-Hung Chang, Po-Yi Wu, Ying-Pyng Lin, and Chia-Yi Chen  »View Author Affiliations

Optics Express, Vol. 19, Issue 27, pp. 26928-26935 (2011)

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A bidirectional fiber optical CATV transport system employing phase modulation (PM) scheme and frequency up-conversion technique to deal with downstream CATV signals, and using light injection-locked distributed feedback laser diode (DFB LD) as a duplex transceiver at the receiving site is proposed and experimentally demonstrated. With optimum injection wavelength and power level, a DFB LD is efficiently employed for both the transmitter and receiver operations. Such DFB LD is used to replace the functions of delay interferometer (DI) and CATV receiver, and also to be as the upstream light source. To the best of our knowledge, it is the first time to successfully utilize a DFB LD to detect the phase-modulated CATV signals. Impressive experimental results prove that our proposed systems not only can employ the PM scheme and the frequency up-conversion technique to optimize the overall performances of systems, but also can use an injection-locked DFB LD to detect the downstream phase-modulated CATV signals as well as to transmit the upstream CATV ones simultaneously.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 2, 2011
Revised Manuscript: December 1, 2011
Manuscript Accepted: December 12, 2011
Published: December 16, 2011

Heng-Sheng Su, Chung-Yi Li, Wen-Yi Lin, Hai-Han Lu, Ching-Hung Chang, Po-Yi Wu, Ying-Pyng Lin, and Chia-Yi Chen, "Fiber optical CATV transport systems based on PM and light injection-locked DFB LD as a duplex transceiver," Opt. Express 19, 26928-26935 (2011)

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