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Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters

Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters
Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters
We theoretically and experimentally analyze unintentional intensity modulation phenomena in two types of all- fiber acousto-optic tunable filters utilizing flexural and torsional acoustic waves. Output filter signal at a resonant wavelength shows time-varying oscillations with even-and odd-order harmonics of applied acoustic frequency, which are explained by two factors of static mode coupling and acoustic back reflection. The magnitudes of static coupling and acoustic reflection in our devices are estimated from the measured first and second harmonic modulation powers.
1094-4087
3985-3992
Lee, Kwang Jo
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Hwang, In-Kag
c06895b1-541e-4bd5-b8af-c708e8b31f77
Park, Hyun Chul
1c2268ff-9d58-4c3c-80c3-c81d3cdd99ba
Nam, Ki Hak
0dfcca75-a722-43c9-884b-4a8ddda43a40
Kim, Byoung Yoon
dcd7a3f9-6563-4101-b72e-da3293033dd2
Lee, Kwang Jo
9f3da7ff-7987-4113-972a-1c1eac169a83
Hwang, In-Kag
c06895b1-541e-4bd5-b8af-c708e8b31f77
Park, Hyun Chul
1c2268ff-9d58-4c3c-80c3-c81d3cdd99ba
Nam, Ki Hak
0dfcca75-a722-43c9-884b-4a8ddda43a40
Kim, Byoung Yoon
dcd7a3f9-6563-4101-b72e-da3293033dd2

Lee, Kwang Jo, Hwang, In-Kag, Park, Hyun Chul, Nam, Ki Hak and Kim, Byoung Yoon (2010) Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters. Optics Express, 18 (5), 3985-3992. (doi:10.1364/OE.18.003985).

Record type: Article

Abstract

We theoretically and experimentally analyze unintentional intensity modulation phenomena in two types of all- fiber acousto-optic tunable filters utilizing flexural and torsional acoustic waves. Output filter signal at a resonant wavelength shows time-varying oscillations with even-and odd-order harmonics of applied acoustic frequency, which are explained by two factors of static mode coupling and acoustic back reflection. The magnitudes of static coupling and acoustic reflection in our devices are estimated from the measured first and second harmonic modulation powers.

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Published date: 1 March 2010
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 378488
URI: http://eprints.soton.ac.uk/id/eprint/378488
ISSN: 1094-4087
PURE UUID: 6597ed80-cd15-4840-a3ec-b482f09d3e44

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Date deposited: 29 Jun 2015 14:25
Last modified: 08 Oct 2019 16:30

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Contributors

Author: Kwang Jo Lee
Author: In-Kag Hwang
Author: Hyun Chul Park
Author: Ki Hak Nam
Author: Byoung Yoon Kim

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