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Title: CO₂ laser induced long period gratings in optical microfibers
Authors: Xuan, Haifeng
Jin, Wei
Zhang, M.
Subjects: Fiber optic sensors
Refractive index
Issue Date: 23-Nov-2009
Publisher: Optical Society of America
Source: Optics express, 23 Nov. 2009, v. 17, no. 24, p. 21882-21890.
Abstract: Long period gratings (LPGs) are fabricated by use of focused high frequency CO₂ laser pulses to periodically modify the transverse dimension of silica microfibers. A 20-period LPG with a 27dB attenuation dip is realized in a microfiber with a diameter of ~6.3μm. The resonant wavelength has a negative temperature coefficient and a high sensitivity to external refractive index. The microfiber LPGs may be useful in micron scale in-fiber devices and sensors.
Rights: © 2009 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: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Type: Journal/Magazine Article
DOI: 10.1364/OE.17.021882
ISSN: 1094-4087
Appears in Collections:EE Journal/Magazine Articles

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