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

doi:10.1109/LPT.2007.909684

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

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

32 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 language	English
Pages (from-to)	1982-1984
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2007.909684
Publication status	Published - 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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10.1109/LPT.2007.909684

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AU - Kim, Jae Young

AU - Choi, Woo Young

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AB - 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.

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