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Proceedings Paper

A simple in-line fiber polarizer based on tapered flat-clad microfiber with a liquid cladding overlay
Author(s): C.-L. Lee; H.-P. Chuang; K.-C. Lai; I.-S. Hsieh; T.-F. Chang; J.-X. Fan; H.-H. Tsao; K.-C. Hsu; N.-K. Chen
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Paper Abstract

A novel and simple in-line fiber polarizer is presented. The proposed device is fabricated by tapering an anisotropic flat-cladding birefringent micro-fiber surrounding with low-dispersion optical-liquid cladding. We also presented a theoretical analysis for dispersive birefringence of flat-clad micro-fiber with liquid overlay. The proposed device can be useful as all-fiber polarizer for optical communications. Simulation results show the birefringence of the device can be enhanced when the aspect is larger. In the experimental measurement for polarization extinction ratio (PER) of the proposed device, a fiber-pigtailed 1549.25 nm DFB laser light was used as light source. The PER about 30 dB was demonstrated when the liquid with refractive index nD = 1.45 was used.

Paper Details

Date Published: 11 November 2008
PDF: 6 pages
Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 713445 (11 November 2008); doi: 10.1117/12.803399
Show Author Affiliations
C.-L. Lee, National United Univ. (Taiwan)
H.-P. Chuang, National United Univ. (Taiwan)
K.-C. Lai, National United Univ. (Taiwan)
I.-S. Hsieh, National United Univ. (Taiwan)
T.-F. Chang, National United Univ. (Taiwan)
J.-X. Fan, National United Univ. (Taiwan)
H.-H. Tsao, National United Univ. (Taiwan)
K.-C. Hsu, National Chiao Tung Univ. (Taiwan)
N.-K. Chen, National United Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7134:
Passive Components and Fiber-based Devices V
Ming-Jun Li; Ping Shum; Ian H. White; Xingkun Wu, Editor(s)

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