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Liquid crystal electric tuning of a photonic crystal laser

Maune, Brett and Loncar, Marko and Witzens, Jeremy and Hochberg, Michael and Baehr-Jones, Thomas and Qiu, Yueming and Psaltis, Demetri and Scherer, Axel (2004) Liquid crystal electric tuning of a photonic crystal laser. In: Tuning the Optical Response of Photonic Bandgap Structures. Proceedings of SPIE. No.5511. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 26-37. ISBN 9780819454492.

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We demonstrate an electrically-tuned nematic liquid crystal (LC) infiltrated photonic crystal (PC) laser. The PC laser is encased between two transparent indium tin oxide (ITO) glass plates which serve as the modulating electrodes and also define the LC cell. Applying a voltage across the cell realigns the LC, modifies the laser cavity's optical path length, and blue-shifts the lasing wavelength. The measured tuning threshold voltage agrees well with the experimentally determined LC threshold voltage which confirms the tuning is due to the LC realignment at the onset of the LC's Freedericksz transition. Furthermore, the electrically-tuned PC laser also demonstrates the successful integration of nonlinear optical materials, electronics, and fluidics with PCs and suggests further integration with other materials will lead to photonic devices with increased functionality and utility.

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Additional Information:© 2004 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors would like to thank Mark Adams, David Barsic, Rhys Lawson, Xu Wang, and Tomoyuki Yoshie for valuable discussions. Funding fo this work by Jag Shah from DARPA under the CS-WDM program (Contract No. N00421-02-D-3223) is also gratefully acknowledged.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)N00421-02-D-3223
Subject Keywords:photonic crystals, photonic crystal laser, liquid crystal, tunable laser
Series Name:Proceedings of SPIE
Issue or Number:5511
Record Number:CaltechAUTHORS:20180710-094246993
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Official Citation:Brett Maune, Marko Loncar, Jeremy Witzens, Michael Hochberg, Tom Baehr-Jones, Yueming Qiu, Demetri Psaltis, Axel Scherer, "Liquid crystal electric tuning of a photonic crystal laser", Proc. SPIE 5511, Tuning the Optical Response of Photonic Bandgap Structures, (14 October 2004); doi: 10.1117/12.564556;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87688
Deposited By: George Porter
Deposited On:10 Jul 2018 17:06
Last Modified:15 Nov 2021 20:50

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