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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1710–1712

All-fiber add–drop filters based on microfiber knot resonators

Xiaoshun Jiang, Yuan Chen, Guillaume Vienne, and Limin Tong  »View Author Affiliations

Optics Letters, Vol. 32, Issue 12, pp. 1710-1712 (2007)

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We demonstrate an all-fiber add–drop filter composed of a microfiber knot (working as a resonator) and a fiber taper (working as a dropping fiber). The dropping taper can be either parallel or perpendicular to the input port of the filter. A quality factor (Q factor) of 13,000 is obtained from a parallel-coupling 308 μ m diameter microknot add–drop filter with a free spectral range (FSR) of 1.8 nm . A Q factor of 3300 is obtained from a cross-coupling 65 μ m diameter microknot add–drop filter with a FSR of 8.1 nm . This device is particularly easy to fabricate and to connect to fiber systems.

© 2007 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.5750) Optical devices : Resonators

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 7, 2007
Manuscript Accepted: March 30, 2007
Published: June 6, 2007

Xiaoshun Jiang, Yuan Chen, Guillaume Vienne, and Limin Tong, "All-fiber add-drop filters based on microfiber knot resonators," Opt. Lett. 32, 1710-1712 (2007)

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