Suppression of coherent interference effect in an optical delay line signal processor using a single tone phase modulation technique

Research output: Contribution to journalArticle

Abstract

A new technique that can suppress the coherent interference effect in an optical delay line signal processor is presented. It is based on single tone phase modulation of the optical carrier to translate the phase-induced intensity noise at baseband into high frequencies. This technique enables a narrow-linewidth telecommunication-type laser to be used as an optical source for a delay line signal processor with robust operation. It has the advantage of not affecting the signal processor and the link configurations. Experimental results demonstrate a robust delay line notch filter frequency response using a narrow-linewidth optical source.
Original languageEnglish
Pages (from-to)215-217
Number of pages3
JournalIEEE Photonics Technology Letters
Volume21
Issue number4
DOIs
Publication statusPublished - 15 Feb 2009
Externally publishedYes

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