The present invention provides an apparatus for passively stabilizing the optical pathlength in tunable lasers. Lasers stabilized using the passive stabilization apparatus exhibit reduced mode hop and increased wavelength stability during temperature variations of the laser or surrounding environment....http://www.google.fr/patents/US6493365?utm_source=gb-gplus-shareBrevet US6493365 - Passive thermal stabilization of the optical path length in a tunable laser
Passive thermal stabilization of the optical path length in a tunable laser
