Coherent subcarrier multiplexing system with distributing local oscillator in local loop

Tomoaki Ohtsuki, Hiroyuki Yashima, Iwao Sasase, Shinsaku Mori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We propose the coherent subcarrier multiplexed (SCM) system with distributing local oscillator (LO) in local loop. The proposed system can realize multichannel transmission with one optical carrier by using the SCM technique and has no need to have LO at each station. Therefore the proposed system becomes costeffective. The proposed SCM system uses bandpass filter to select a specific channel. We analyze CNR of the system with frequency-shift keying (FSK) in a multi-octave configuration. First, the general expression of CNR is derived and is shown for the following parameters such as the number of channels, the position of station on the loop, and the number of stations on the loop. Second, the optimal CNR, minimum required power of lasers, and maximum number of stations that the proposed system can serve are shown. Moreover CNR of the proposed system is compared with that of the system having LO at each station in local loop. It is shown that the proposed system can obtain good performance at the expense of slight increase of the output power of only two lasers at the central station. Therefore the proposed system is cost-effective and practical.

Original languageEnglish
Title of host publication1992 International Conference on Communications
Subtitle of host publicationDiscovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1158-1162
Number of pages5
ISBN (Electronic)078030599X
DOIs
Publication statusPublished - 1992 Jan 1
Event1992 IEEE International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Chicago, United States
Duration: 1992 Jun 141992 Jun 18

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Conference

Conference1992 IEEE International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992
CountryUnited States
CityChicago
Period92/6/1492/6/18

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Ohtsuki, T., Yashima, H., Sasase, I., & Mori, S. (1992). Coherent subcarrier multiplexing system with distributing local oscillator in local loop. In 1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record (pp. 1158-1162). [268133] (IEEE International Conference on Communications). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.1992.268133