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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4861–4872

Non-proximity resonant tunneling in multi-core photonic band gap fibers: An efficient mechanism for engineering highly-selective ultra-narrow band pass splitters

Nikolaos J. Florous, Kunimasa Saitoh, Tadashi Murao, Masanori Koshiba, and Maksim Skorobogatiy  »View Author Affiliations


Optics Express, Vol. 14, Issue 11, pp. 4861-4872 (2006)
http://dx.doi.org/10.1364/OE.14.004861


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Abstract

The objective of the present investigation is to demonstrate the possibility of designing compact ultra-narrow band-pass filters based on the phenomenon of non-proximity resonant tunneling in multi-core photonic band gap fibers (PBGFs). The proposed PBGF consists of three identical air-cores separated by two defected air-holes which act as highly-selective resonators. With a fine adjustment of the design parameters associated with the resonant-air-holes, phase matching at two distinct wavelengths can be achieved, thus enabling very narrow-band resonant directional coupling between the input and the two output cores. The validation of the proposed design is ensured with an accurate PBGF analysis based on finite element modal and beam propagation algorithms. Typical characteristics of the proposed device over a single polarization are: reasonable short coupling length of 2.7 mm, dual bandpass transmission response at wavelengths of 1.339 and 1.357 µm, with corresponding full width at half maximum bandwidths of 1.2 nm and 1.1 nm respectively, and a relatively high transmission of 95% at the exact resonance wavelengths. The proposed ultra-narrow band-pass filter can be employed in various applications such as all-fiber bandpass/bandstop filtering and resonant sensors.

© 2006 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2430) Fiber optics and optical communications : Fibers, single-mode

ToC Category:
Photonic Crystal Fibers

History
Original Manuscript: March 22, 2006
Revised Manuscript: May 1, 2006
Manuscript Accepted: May 10, 2006
Published: May 29, 2006

Citation
Nikolaos J. Florous, Kunimasa Saitoh, Tadashi Murao, Masanori Koshiba, and Maksim Skorobogatiy, "Non-proximity resonant tunneling in multi-core photonic band gap fibers: An efficient mechanism for engineering highly-selective ultra-narrow band pass splitters," Opt. Express 14, 4861-4872 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-11-4861


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