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Published June 13, 2005 | Published
Journal Article Open

Optically triggered Q-switched photonic crystal laser


An optically triggered liquid crystal infiltrated Q-switched photonic crystal laser is demonstrated. A photonic crystal laser cavity was designed and fabricated to support two orthogonally polarized high-Q cavity modes after liquid crystal infiltration. By controlling the liquid crystal orientation via a layer of photoaddressable polymer and a writing laser, the photonic crystal lasing mode can be reversibly switched between the two modes which also switches the laser's emission polarization and wavelength. The creation of the Q-switched laser demonstrates the benefits of customizing photonic crystal cavities to maximally synergize with an infiltrated material and illustrates the potential of integrating semiconductor nanophotonics with optical materials.

Additional Information

© 2005 Optical Society of America Received 16 May 2005; revised 3 June 2005; accepted 6 June 2005 The authors would like to thank Eric Kelsic, Beth Lachut, Robb Walters, Tomoyuki Yoshie, and Zhaoyu Zhang for valuable discussions. Funding for this work by DARPA as part of the Center for Optofluidic Integration is also gratefully acknowledged.

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