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Optical Engineering • Open Access

Optical clock recovery scheme for a high bit rate nonreturn-to-zero signal using fiber Bragg grating filters
Author(s): Jaemyoung Lee; Hyunwoo Cho; Sang-Kyu Lim; Sang-Soo Lee; Je Soo Ko

Paper Abstract

For optical clock recovery of nonreturn-to-zero (NRZ) signals more than 40 Gb/s, we propose and experimentally demonstrate a simple clock recovery scheme using beat processing. Through the proposed scheme, we square the adjustment range of the variable optical attenuator (VOA) and achieved an enhanced clock-to-noise ratio (CNR) of more than 15 dB in the experiment, compared to a system without the proposed scheme.

Paper Details

Date Published: 1 February 2005
PDF: 2 pages
Opt. Eng. 44(2) 020502 doi: 10.1117/1.1849592
Published in: Optical Engineering Volume 44, Issue 2
Show Author Affiliations
Jaemyoung Lee, Korea Polytechnic Univ. (South Korea)
Hyunwoo Cho, Electronics and Telecommunications Research Institute (South Korea)
Sang-Kyu Lim, Electronics and Telecommunications Research Institute (South Korea)
Sang-Soo Lee, Electronics and Telecommunications Research Institute (South Korea)
Je Soo Ko, Electronics and Telecommunications Research Institute (South Korea)


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