Densely spaced fdm coherent optical star network using monolithic widely frequency-tunable lasers

B. Glance, T. L. Koch, O. Scaramucci, K. C. Reichmann, U. Koren, C. A. Burrus

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The letter presents the results obtained with a densely spaced FDM coherent optical network using monolithic widely frequency-tunable lasers. The system consists of four channels transmitted around 1.53μm, FSK-modulated at 200Mbit/s and spaced by 2.45 GHz. A 16 × 16 fibre star coupler combines the four optical signals. Demultiplexing is performed by a heterodyne FM receiver at an IF frequency of 850 MHz. The minimum received optical power needed to obtain a BER of 10-9 is -55.5dBm or 109 photons/bit, which is 3.4 dB from the shot noise limit.

Original languageEnglish (US)
Pages (from-to)672-673
Number of pages2
JournalElectronics Letters
Volume25
Issue number10
DOIs
StatePublished - Jan 1 1989
Externally publishedYes

Keywords

  • Optical communications
  • Optical multiplexing
  • Semiconductor lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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