FIBER OPTICS

Polarization-isolated electrical modulation of an etched long-period fiber grating with an outer liquid-crystal cladding

[+] Author Affiliations
Yoonchan Jeong, Hak-Rin Kim, Seungin Baek, Yonghyun Kim, Yong Wook Lee, Sin-Doo Lee, Byoungho Lee

Seoul National University, School of Electrical Engineering, Kwanak-Gu Shinlim-Dong, Seoul?151-744, Korea E-mail: byoungho@plaza.snu.ac.kr

Opt. Eng. 42(4), 964-968 (Apr 01, 2003). doi:10.1117/1.1555011
History: Received Apr. 19, 2002; Revised Sep. 3, 2002; Accepted Sep. 16, 2000; Online April 01, 2003
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An etched long-period fiber grating with an outer liquid-crystal cladding capable of polarization-isolated electrical modulation, is described. A 5-dB transmission-dip modulation with 4-dB polarization isolation can be obtained at 225 V. The reduction in fiber diameter by a chemical etching process leads to an improvement in the long-range ordering of liquid-crystal molecules and a reduction in the controlling voltage. In addition, the experimental results are supported by numerical simulation. © 2003 Society of Photo-Optical Instrumentation Engineers.

© 2003 Society of Photo-Optical Instrumentation Engineers

Citation

Yoonchan Jeong ; Hak-Rin Kim ; Seungin Baek ; Yonghyun Kim ; Yong Wook Lee, et al.
"Polarization-isolated electrical modulation of an etched long-period fiber grating with an outer liquid-crystal cladding", Opt. Eng. 42(4), 964-968 (Apr 01, 2003). ; http://dx.doi.org/10.1117/1.1555011


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