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Control of broad-area vertical-cavity surface emitting laser emission by optically induced photonic crystals

Terhalle, B. and Radwell, N. and Rose, P. and Denz, C. and Ackemann, T. (2008) Control of broad-area vertical-cavity surface emitting laser emission by optically induced photonic crystals. Applied Physics Letters, 93 (15). ISSN 0003-6951

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Abstract

We control the emission properties of a broad-area vertical-cavity surface emitting laser by coupling it to an external feedback cavity containing a photorefractive crystal with an optically induced photonic lattice. The periodic modulation of the refractive index serves as a tunable filter and enables the dynamic suppression of unwanted spatial instabilities and modes, as originally suggested by Gomila et al.