发明名称 |
APPARATUS FOR MANUFACTURING OPTICAL FIBER BRAGG GRATING, OPTICAL FIBER, AND MID-INFRARED OPTICAL FIBER LASER |
摘要 |
Provided is an apparatus for manufacturing an optical fiber Bragg grating. The optical fiber Bragg grating manufacturing apparatus includes: an optical fiber; a laser for irradiating a laser beam to the optical fiber to change a refractive index of a core of the optical fiber; an optical system for periodically changing the intensity of the laser beam irradiated to the optical fiber core; a broadband light source for providing broadband light as an incident signal to the optical fiber in order to observe a reflection characteristic of a Bragg grating formed in the optical fiber by the laser beam converted by the optical system; and an optical spectrum analyzer (OSA) for measuring a reflected signal or a transmitted signal of the broadband light incident to the Bragg grating, wherein the optical system realizes a Bragg wavelength (lambda<SUB>B</SUB>) in order to periodically change the refractive index of the optical fiber core, and the broadband light source and the optical spectrum analyzer use lambda<SUB>B</SUB>/N, where lambda<SUB>B </SUB>denotes the Bragg wavelength and N is a natural number which is equal to or more than 2.
|
申请公布号 |
US2008156779(A1) |
申请公布日期 |
2008.07.03 |
申请号 |
US20070942986 |
申请日期 |
2007.11.20 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
AHN JOON TAE;SEO HONG SEOK;PARK BONG JE |
分类号 |
B23K26/00 |
主分类号 |
B23K26/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|