Title:
デュオバイナリ受信器
Document Type and Number:
Japanese Patent JP4629423
Kind Code:
B2
Abstract:
An optical receiver adapted to process an optical duobinary signal received over a transmission link in an optical communication system. In one embodiment, the receiver has an optical-to-electrical signal converter coupled to a decoder. The decoder processes an electrical signal generated by the converter to generate a bit sequence corresponding to the optical signal. To generate a bit value, the decoder integrates the electrical signal using a sampling window and compares the integration result with a decision threshold value. In one configuration, the width of the sampling window and the decision threshold value are selected based on the eye diagram and noise distribution function, respectively, corresponding to the optical signal. Advantageously, embodiments of the present invention improve overall back-to-back (i.e., source-to-destination) system performance, e.g., by improving dispersion tolerance and/or reducing optical power corresponding to a selected bit error rate value.
Inventors:
Shanliu
Rosser Benedict Airhard Joseph Moeller
Shin Way
Chongjin Xie
Rosser Benedict Airhard Joseph Moeller
Shin Way
Chongjin Xie
Application Number:
JP2004354755A
Publication Date:
February 09, 2011
Filing Date:
December 08, 2004
Export Citation:
Assignee:
Alcatel-Lucent USA Inc.
International Classes:
H04B10/00; H04L25/497; H03M5/18; H04B10/04; H04B10/06; H04B10/14; H04B10/142; H04B10/152; H04B10/155; H04B10/158; H04B10/26; H04B10/43; H04L7/04; H04L25/06; H04L25/49
Domestic Patent References:
| JP2003014548A | ||||
| JP60240249A | ||||
| JP6046044A |
Foreign References:
| US20030170022 | ||||
| US6295152 | ||||
| WO1999062200A2 |
Other References:
K. Yonenaga, S. Kuwano,Dispersion-Tolerant Optical Transmission System Using Duobinary Transmitter and Binary Receiver,Journal of Lightwave Technology,米国,IEEE,1997年 8月,Vol. 15, No 8,p. 1530 - 1537
Attorney, Agent or Firm:
Okabe
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama