Patent ID: 6947636
Filing Date: 2005-09-20
Classification: G02B

Abstract:
1. An optical module comprising: an optical fiber having a formed portion to form a fiber grating; and a package to which said optical fiber is secured, wherein said package comprises a single package member or at least two package members of which materials differ from each other, said optical fiber is secured to said package member, and a distortion for adjusting a Bragg reflection wavelength of said fiber grating of the optical fiber is given to said package member, wherein said package comprises a first package member and a second package member which is different in linear expansion coefficient differs from the first packaged member, wherein the distortion is given to at least one of the first and second package members, thereby the Bragg reflection wavelength of the fiber grating of the optical fiber being approximately equal to a prescribed wavelength, and wherein the distortion is given to only one package member selected from the first and second package members and the distortion-given package member is smaller in the linear expansion coefficient from a remaining package member.