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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 18 — Jun. 20, 2007
  • pp: 3688–3693

Characterization of tunable photonic crystal fiber directional couplers

Hyun Soo Jang, Kwang No Park, and Kyung Shik Lee  »View Author Affiliations

Applied Optics, Vol. 46, Issue 18, pp. 3688-3693 (2007)

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We present a tunable photonic crystal fiber (PCF) directional coupler fabricated by a side-polishing method. The PCF directional coupler was modeled as a typical single-mode fiber-based directional coupler and analyzed using the improved effective-index method (IEIM). The characteristics of the PCF directional coupler such as the coupling coefficient and the coupling ratio were measured and found to be in good agreement with those predicted by the theoretical model. The PCF directional coupler exhibited an insertion loss of 2   dB for a 3   dB coupler and was able to tune the coupling ratio between 0% and 100% by tilting the angle of the top side-polished quartz block against the fixed-bottom quartz block.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 14, 2006
Revised Manuscript: March 14, 2007
Manuscript Accepted: March 16, 2007
Published: May 31, 2007

Hyun Soo Jang, Kwang No Park, and Kyung Shik Lee, "Characterization of tunable photonic crystal fiber directional couplers," Appl. Opt. 46, 3688-3693 (2007)

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