Patent ID: 8488641

Claim:
A light source comprising: a III-V semiconductor based pump light source comprising N and emitting light at a first wavelength; a vertical cavity surface emitting laser (VCSEL) converting at least a portion of the first wavelength light emitted by the pump light source to at least a partially coherent light at a second wavelength, the VCSEL comprising: first and second mirrors forming an optical cavity for light at the second wavelength, the first mirror being substantially reflective at the second wavelength and comprising a first multilayer stack, the second mirror being substantially transmissive at the first wavelength and partially reflective and partially transmissive at the second wavelength, the second mirror comprising a second multilayer stack; and a II-VI semiconductor multilayer stack disposed between the first and second mirrors and converting at least a portion of the first wavelength light to the second wavelength light, the semiconductor multilayer stack comprising a potential well comprising CdMgZnSe and further comprising an absorbing layer proximate the potential well, the absorbing layer comprising CdMgZnSe.