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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 2194–2197

Programmable multi-wavelength filter with Mach–Zehnder interferometer embedded in ethanol filled photonic crystal fiber

Zhiyong Zhao, Ming Tang, Huiqi Liao, Guobin Ren, Songnian Fu, Fang Yang, Perry Ping Shum, and Deming Liu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 7, pp. 2194-2197 (2014)
http://dx.doi.org/10.1364/OL.39.002194


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Abstract

We experimentally demonstrated a free spectrum range (FSR) tunable comb filter based on a programmable thermo-controlled Mach–Zehnder interferometer. The device is constructed by sandwiching a length of ethanol-filled photonic crystal fiber between single-mode fibers. A digital thermal printer head is used to facilitate the interference as well as to adjust the phase difference by selectively activating the independent heating elements, thus the FSR can be digitally tuned conveniently. The filter shows a feature of periodic equalized passbands with flat-top steep-edge as well as a high extinction ratio over a very wide range of wavelengths from 1.52 to 1.58 μm.

© 2014 Optical Society of America

OCIS Codes
(120.6780) Instrumentation, measurement, and metrology : Temperature
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(150.5495) Machine vision : Process monitoring and control
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 26, 2013
Revised Manuscript: February 20, 2014
Manuscript Accepted: March 6, 2014
Published: March 31, 2014

Citation
Zhiyong Zhao, Ming Tang, Huiqi Liao, Guobin Ren, Songnian Fu, Fang Yang, Perry Ping Shum, and Deming Liu, "Programmable multi-wavelength filter with Mach–Zehnder interferometer embedded in ethanol filled photonic crystal fiber," Opt. Lett. 39, 2194-2197 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-7-2194


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