A laser apparatus and method that provide for suppression of source spontaneous emission (SSE) and amplified spontaneous emission (ASE) light in laser output with minimal intracavity loss. The apparatus comprises a gain medium emitting a light beam, a wavelength element positioned in the light beam,...http://www.google.com/patents/US6788726?utm_source=gb-gplus-sharePatent US6788726 - External cavity laser with high spectral purity output
