Investigation of an arc-induced long period fiber grating inscribed in aphotonic crystal fiber with two large air holes

Title
Investigation of an arc-induced long period fiber grating inscribed in aphotonic crystal fiber with two large air holes
Authors
김선덕김길환황규진임선도이관일김상혁이상배정제명
Keywords
Long period fiber grating; Photonic crystal fiber; Sensor
Issue Date
2009-12
Publisher
Journal of the Optical Society of Korea
Citation
VOL 13, NO 4, 428-433
Abstract
A photonic crystal fiber with two large air holes outside the holey cladding region is fabricated to induce an effective long periodic grating (LPG) in the core by an electric arc discharge. We believe that the two large air holes lead to the asymmetric perturbation in the core under the electric arc discharge, thereby introducing the coupling to the first higher-order mode. The transmission characteristics of the PCF with the LPG for the external perturbation such as strain, curvature, and temperature are also investigated. It was found that the shift of resonance peak in the transmission spectrum depends on the bending direction. The curvature of 8.55 m-1 results in the center wavelength shifts of 1.8, 4.3, and 11 nm for a vertical, diagonal, and horizontal direction of the curvature to the large air-hole alignment, respectively.
URI
http://pubs.kist.re.kr/handle/201004/38134
ISSN
1226-4776
Appears in Collections:
KIST Publication > Article
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