DocumentCode
1279062
Title
Step-changed long-period fiber gratings
Author
Guan, Bai-Ou ; Zhang, A-Ping ; Tam, Hwa-Yaw ; Chan, Helen L.W. ; Choy, Chung-Loong ; Tao, Xiao-Ming ; Demokan, Muhtesem Sü leyman
Author_Institution
Dept. of Appl. Phys., Hong Kong Polytech. Univ., Kowloon, China
Volume
14
Issue
5
fYear
2002
fDate
5/1/2002 12:00:00 AM
Firstpage
657
Lastpage
659
Abstract
The spectral characteristics of a new type of long-period grating (LPG) structure, step-changed LPG, are investigated theoretically and experimentally. It is shown that the spectral profile of such gratings can be tailored by adjusting the step parameters. A good agreement between simulated results and measured spectra is obtained. This type of LPG has potential applications in gain flattening of erbium-doped fiber amplifiers.
Keywords
band-stop filters; diffraction gratings; optical fibre amplifiers; optical fibre filters; optical fibre theory; Er-doped fiber amplifiers; band-rejection transmissive filters; gain flattening; simulated results; spectral characteristics; spectral profile; step parameters; step-changed LPG; step-changed long-period fiber gratings; Attenuation; Coupled mode analysis; Equations; Erbium-doped fiber amplifier; Fiber gratings; Interference; Optical attenuators; Optical coupling; Optical fiber filters; Optical fibers;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.998716
Filename
998716
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