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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 12670–12676

Optics InfoBase > Optics Express > Volume 16 > Issue 17 > Page 12670

Light-controllable photoresponsive liquid-crystal photonic crystal fiber

Vincent K. Hsiao and Chang-Yu Ko  »View Author Affiliations


Optics Express, Vol. 16, Issue 17, pp. 12670-12676 (2008)
http://dx.doi.org/10.1364/OE.16.012670


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Abstract

We have developed all-optical modulation of photonic crystal fiber (PCF) by infiltrating photoresponsive liquid crystal (LC) into the voids within the cladding structure. The photo-induced phase transformation of the photoresponsive LC modulates the effective refractive index of the photoresponsive LC-filled cladding, thereby creating an environment of modifiable total internal reflection that tunes the output intensity of guided light upon the stimulus of optical field. The modulation range for the 632 nm wavelength is 10 dB and the response time for switching is less than 1 second by manually obstructing the pumping light path. In addition to altering the power of the pumping laser to actively tune the output intensity, the polarization direction of the pumping laser can also tune the output intensity by 5 dB.

© 2008 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.1150) Optical devices : All-optical devices

ToC Category:
Photonic Crystal Fibers

History
Original Manuscript: July 10, 2008
Revised Manuscript: July 31, 2008
Manuscript Accepted: August 1, 2008
Published: August 6, 2008

Citation
Vincent K. Hsiao and Chang-Yu Ko, "Light-controllable photoresponsive liquid-crystal photonic crystal fiber," Opt. Express 16, 12670-12676 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-17-12670


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