Direct Demodulation and Channel Filtering of Phase-Modulated Signals Using an Injection-Locked VCSEL

Hoghooghi N., ÖZDÜR İ. T., Bhooplapur S., Delfyett P. J.

IEEE PHOTONICS TECHNOLOGY LETTERS, vol.22, no.20, pp.1509-1511, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 20
  • Publication Date: 2010
  • Doi Number: 10.1109/lpt.2010.2065798
  • Journal Name: IEEE PHOTONICS TECHNOLOGY LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1509-1511
  • Abdullah Gül University Affiliated: No

Abstract

Detection of phase-modulated optical signals without the use of an externally generated local oscillator is demonstrated using an injection-locked vertical-cavity surface-emitting laser. When it is used in a multichannel system, this technique is also capable of actively filtering out one of the phase-modulated optical carriers. The experimental results of the proposed receiver performance in a three-channel optical system are presented here. A signal-to-noise ratio of 75 dBc/Hz is obtained.