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

Fingerprint

Electric delay lines
delay lines
Phase noise
Noise abatement
noise reduction
oscillators
injection
Millimeter waves
oscillations
Feedback
millimeter waves
routes
retarding
output

All Science Journal Classification (ASJC) codes

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

Cite this

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A 30-GHz self-injection-locked oscillator having a long optical delay line for phase-noise reduction. / Lee, Kwang Hyun; Kim, Jae Young; Choi, Woo Young.

In: IEEE Photonics Technology Letters, Vol. 19, No. 24, 15.12.2007, p. 1982-1984.

Research output: Contribution to journalArticle

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