The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2005
Filed:
Sep. 12, 2001
Richard L. Lachance, Ste-Foy, CA;
André Vo Van, Ste-Foy, CA;
Michel Morin, Sillery, CA;
Martin Guy, Cap-Rouge, CA;
Martin Pelletier, St-Jean Chrysostome, CA;
Richard L. Lachance, Ste-Foy, CA;
André Vo Van, Ste-Foy, CA;
Michel Morin, Sillery, CA;
Martin Guy, Cap-Rouge, CA;
Martin Pelletier, St-Jean Chrysostome, CA;
Teraxion, Inc., , CA;
Abstract
An athermally packaged optical fiber device, such as a Bragg grating, is provided. The device includes a hollow structure, and a free and a threaded member projecting in the hollow structure from both ends. The optical fiber is mounted in tension inside the hollow structure through longitudinal fiber-receiving bores in both members, and has an anchor point affixed to each member with the grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free and threaded members are rotatable together to adjust the resonant wavelength of the grating, and a nut may be provided to allow a fine-tuning. The hollow structure, free member and threaded member have a coefficient of thermal expansion selected so that they together compensate for the temperature dependency of the Bragg wavelength.