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

Terhalle, Bernd; Radwell, Neal; Rose, Patrick; Denz, Cornelia; Ackemann, Thorsten
October 2008
Applied Physics Letters;10/13/2008, Vol. 93 Issue 15, p151114
Academic Journal
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. [Phys. Rev. Lett. 92, 253904 (2004)].


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