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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 16 — Aug. 11, 2003
  • pp: 1900–1905

Strong resonance and a highly compact long-period grating in a large-mode-area photonic crystal fiber

Yinian Zhu, Ping Shum, Hin-Joo Chong, M. K. Rao, and Chao Lu  »View Author Affiliations


Optics Express, Vol. 11, Issue 16, pp. 1900-1905 (2003)
http://dx.doi.org/10.1364/OE.11.001900


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Abstract

A strong resonance and extremely short length long-period grating (LPG) has been fabricated in a large-mode-area photonic crystal fiber (PCF) by use of a CO2 laser heat source. We believe that such a long-period grating in pure silica PCF is the first example of a point-by-point technique. The fabrication method is simple and repeatable. The resulting LPG has been developed with eight periodic collapses within a 2.8-mm-long period of the fiber, which gives the strong resonance of core-cladding mode coupling. The lowest mode of LP01 is at a 1529.2-nm wavelength with a full width at half-maximum of ~0.7 nm and a resonance strength of -31.5 dB. The principal advantages of this LPG are that (1) it is temperature insensitive and stable, (2) the device is compact when it is packaged, and (3) it provides practical, low-cost all-fiber filters and PCF-based devices for optical fiber communications and sensing systems.

© 2003 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.0230) Optical devices : Optical devices
(230.1480) Optical devices : Bragg reflectors
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Research Papers

History
Original Manuscript: July 1, 2003
Revised Manuscript: July 31, 2003
Published: August 11, 2003

Citation
Yinian Zhu, Ping Shum, Hin-Joo Chong, M. Rao, and Chao Lu, "Strong resonance and a highly compact longperiod grating in a large-mode-area photonic crystal fiber," Opt. Express 11, 1900-1905 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-16-1900


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