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http://hdl.handle.net/10397/4387
Title: | Structural long period gratings made by drilling micro-holes in photonic crystal fibers with a femtosecond infrared laser | Authors: | Liu, S Jin, L Jin, W Wang, D Liao, C Wang, Y |
Issue Date: | 15-Mar-2010 | Source: | Optics express, 15 Mar. 2010, v. 18, no. 6, p. 5496-5503 | Abstract: | We present a new method for fabricating structural long-period gratings (LPGs) in photonic-crystal fibers (PCFs). The method is based on periodically drilling holes into the PCF cladding along the length of the fiber by use of a focused femtosecond infrared laser. A very short LPG with only 9 periods and a grating length of < 4 mm exhibited resonance strength of over 20 dB and a polarization dependent loss of 25 dB. The high resonance strength is attributed to the strong modulated mode-field profile caused by the significant perturbation of the fiber geometry. The mechanism of LPG formation is discussed based on coupled local-mode theory. | Keywords: | Crystal whiskers Fibers Infrared devices Infrared lasers Laser cladding Photonic crystals Resonance |
Publisher: | Optical Society of America | Journal: | Optics express | EISSN: | 1094-4087 | DOI: | 10.1364/OE.18.005496 | Rights: | © 2010 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-6-5496. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Appears in Collections: | Journal/Magazine Article |
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Liu_Structural_long_period.pdf | 240 kB | Adobe PDF | View/Open |
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