Wideband-frequency tunable optoelectronic oscillator based on injection locking to an electronic oscillator

被引：39
|
作者：
Fleyer, Michael [1 ]
Sherman, Alexander [1 ]
Horowitz, Moshe [1 ]
Namer, Moshe [1 ]
机构：
[1] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
来源：
OPTICS LETTERS | 2016年 / 41卷 / 09期
关键词：
CLOCK; NOISE;
D O I：
10.1364/OL.41.001993
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally demonstrate a wideband-frequency tunable optoelectronic oscillator (OEO) based on injection locking of the OEO to a tunable electronic oscillator. The OEO cavity does not contain a narrowband filter and its frequency can be tuned over a broad bandwidth of 1 GHz. The injection locking is based on minimizing the injected power by adjusting the frequency of one of the OEO cavity modes to be approximately equal to the frequency of the injected signal. The phase noise that is obtained in the injection-locked OEO is similar to that obtained in a long-cavity self-sustained OEO. Although the cavity length of the OEO was long, the spurious modes were suppressed due to the injection locking without the need to use a narrowband filter. The spurious level was significantly below that obtained in a self-sustained OEO after inserting a narrowband electronic filter with a Q-factor of 720 into the cavity. (C) 2016 Optical Society of America
引用
收藏
页码：1993 / 1996
页数：4
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