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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 5 — Mar. 1, 2010
  • pp: 3985–3992

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

Kwang Jo Lee, In-Kag Hwang, Hyun Chul Park, Ki Hak Nam, and Byoung Yoon Kim  »View Author Affiliations


Optics Express, Vol. 18, Issue 5, pp. 3985-3992 (2010)
http://dx.doi.org/10.1364/OE.18.003985


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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.

© 2010 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.1040) Optical devices : Acousto-optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 18, 2009
Revised Manuscript: January 30, 2010
Manuscript Accepted: February 2, 2010
Published: February 16, 2010

Citation
Kwang Jo Lee, In-Kag Hwang, Hyun Chul Park, Ki Hak Nam, and Byoung Yoon Kim, "Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters," Opt. Express 18, 3985-3992 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-3985


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References

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