A 30-GHz self-injection-locked oscillator having a long optical delay line for phase-noise reduction

Kwang Hyun Lee, Jae Young Kim, Woo Young Choi

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We demonstrate a millimeter-wave self- injection- locked (SIL) oscillator having a long optical delay line as a feedback route. In the SIL oscillator, a part of output signal is self-injected into the oscillator after passing through a long optical delay line, resulting in locked oscillation and phase-noise reduction. By controlling the self-injection power, we achieve 30-GHz oscillation with a sidemode suppression ratio larger than 50 dB and about 18-dB phase-noise reduction at 10-kHz frequency offset.

Original languageEnglish
Pages (from-to)1982-1984
Number of pages3
JournalIEEE Photonics Technology Letters
Volume19
Issue number24
DOIs
Publication statusPublished - 2007 Dec 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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