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In-plane littrow lasing of broad photonic crystal waveguides

Abstract : Broad photonic crystal waveguides forming open resonators are shown to support an hitherto unnoticed lasing pattern. The feedback for lasing originates in Littrow-type reflections of higher-order modes from the waveguide boundaries. The authors employ plane wave and finite-difference time-domain simulations of bulk crystal and waveguide to substantiate the concept of a distributed Littrow reflector. Experimental results are reported for a 10-μm-wide photonic crystal waveguide deeply etched into InP substrate. In-plane lasing and low modal threshold gain due to longer path lengths are the key features of this resonator.
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Submitted on : Monday, October 14, 2013 - 2:48:48 PM
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Omer Khayam, Cyril Cambournac, Henri Benisty, Melanie Ayre, Romain Brenot, et al.. In-plane littrow lasing of broad photonic crystal waveguides. Applied Physics Letters, American Institute of Physics, 2007, 91 (4), pp.041111. ⟨10.1063/1.2763977⟩. ⟨hal-00872830⟩



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