Spurious mode reduction in dual injection-locked optoelectronic oscillators

被引：91

作者：

Okusaga, O. ^{[1
,2
]}

Adles, E. J. ^{[1
]}

Levy, E. C. ^{[3
]}

Zhou, W. ^{[1
]}

Carter, G. M. ^{[2
]}

Menyuk, C. R. ^{[2
]}

Horowitz, M. ^{[3
]}

机构：

[1] USA, Res Lab, Adelphi, MD 20783 USA

[2] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA

[3] Technion Israel Inst Technol, Haifa, Israel

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 07期

关键词：

PHASE-NOISE;

D O I：

10.1364/OE.19.005839

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optoelectronic oscillators (OEOs) are promising sources of low phase noise radio frequency (RF) signals. However, at X-band frequencies, the long optical fiber delay line required for a high oscillator Q also leads to spurious modes (spurs) spaced too narrowly to be filtered by RF filters. The dual injection-locked OEO (DIL-OEO) has been proposed as a solution to this problem. In this work, we describe in detail the construction of a DIL-OEO. We also present experimental data from our systematic study of injection-locking in DIL-OEOs. With this data, we optimize the DIL-OEO, achieving both low phase noise and low spurs. Finally, we present data demonstrating a 60 dB suppression of the nearest-neighbor spur without increasing the phase noise within 1 kHz of the 10 GHz central oscillating mode. c 2011 Optical Society of America

引用

页码：5839 / 5854

页数：16

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