公开(公告)号：CA2357242A1

公开(公告)日：2002-08-22

申请号：CA2357242

申请日：2001-09-12

Applicant: TERAXION INC

Inventor： VO VAN ANDRE ,  GUY MARTIN ,  LACHANCE RICHARD L ,  PELLETIER MARTIN ,  MORIN MICHEL

IPC: G02B5/18 ,  G02B6/00 ,  G02B6/02 ,  G02B6/34 ,  G02B26/00 ,  G02B6/18

Abstract: An athermally packaged optical fiber device, such as a Bragg grating, i s 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 t he grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free an d 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.