An apparatus for stabilizing the wavelength of light emitted by a laser or light source comprising a divider for dividing a sample of emitted light into a first and second portion; a first photodetector configured to measure an intensity of the first portion and a second photodetector configured to measure...http://www.google.fr/patents/US6215801?utm_source=gb-gplus-shareBrevet US6215801 - Wavelength stabilized laser
