Method of stabilizing a wavelength of a laser beam and wavelength stabilizing laser device
CA 1313688 C · Owner: Wakata, Hitsoshi · Inventors: Minowa, Yoshibumi; Kaneko, Hiromi; Nakatani, Hajime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wavelength of a laser beam is stabilized by separating a part of the laser beam emitted from an oscillation wavelength changing type laser oscillator with first and second Fabry-Perot etalons; subjecting the separated laser beam to a spectroscopy analysis by a wavelength monitoring means to thereby determine an oscillation wavelength; controlling the first Fabry-Perot etalon by the determined oscillation wavelength so that the wavelength of the laser oscillator is stabilized; separating a part of the laser beam, measuring an output power of the laser beam by a power monitoring means and stabilizing the output of the laser oscillator by controlling the second Fabry-Perot etalon on the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.