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

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 locki...

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Published in:Optics letters 2016-05, Vol.41 (9), p.1993-1996
Main Authors: Fleyer, Michael, Sherman, Alexander, Horowitz, Moshe, Namer, Moshe
Format: Article
Language:English
Subjects:
Adjustment
Electronics
Holes
Injection locking
Narrowband
Noise
Optoelectronics
Oscillators
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cited_by cdi_FETCH-LOGICAL-c324t-ed67558350fa2962cdfcec4cb72ad8a53efacf563589997969f00bba75e79bcd3
cites cdi_FETCH-LOGICAL-c324t-ed67558350fa2962cdfcec4cb72ad8a53efacf563589997969f00bba75e79bcd3
container_end_page 1996
container_issue 9
container_start_page 1993
container_title Optics letters
container_volume 41
creator Fleyer, Michael
Sherman, Alexander
Horowitz, Moshe
Namer, Moshe
description 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.
doi_str_mv 10.1364/OL.41.001993
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source Optica Publishing Group Journals
subjects Adjustment
Electronics
Holes
Injection locking
Narrowband
Noise
Optoelectronics
Oscillators
title Wideband-frequency tunable optoelectronic oscillator based on injection locking to an electronic oscillator
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