DocumentCode :
1539390
Title :
Strong 
and 
Mutual Coupling Conversion in a Two-Mode Fiber
Author :
Wu, Chuang ; Liu, Zhengyong ; Chung, Kit Man ; Tse, Ming-Leung Vincent ; Chan, Florence Y M ; Lau, Alan Pak Tao ; Lu, Chao ; Tam, Haw-Yaw
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
Volume :
4
Issue :
4
fYear :
2012
Firstpage :
1080
Lastpage :
1086
Abstract :
A fiber Bragg grating is inscribed in a two-mode fiber using a 193-nm excimer laser and a phase mask. Strong LP01 and LP11 mutual coupling as large as -22.5 dB, which corresponds to a modal conversion efficiency of more than 99%, is experimentally achieved. The intermodal coupling mechanism is theoretically analyzed through a finite element method. This device can be used as a low-cost reflective LP01 ↔ LP11 converter.
Keywords :
Bragg gratings; excimer lasers; laser materials processing; masks; optical fibre couplers; optical fibre fabrication; excimer laser; intermodal coupling mechanism; mutual coupling conversion; phase mask; two mode fiber Bragg grating; wavelength 193 nm; Bragg gratings; Couplings; Optical fiber communication; Optical fiber polarization; Optical fiber sensors; Fiber Bragg grating; modal converter; two-mode fiber;
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2012.2204735
Filename :
6217268
Link To Document :
