DocumentCode :
1398202
Title :
Chirped Periodically Poled 
Wavelength Converter With Apodization Structure
Author :
Kishimoto, Tadashi ; Nakamura, Koji ; Yaegashi, Hiroki ; Inafune, Koji ; Murai, Hitoshi ; Okayama, Hideaki
Author_Institution :
Corp. R&D Center, Oki Electr. Ind. Co., Ltd., Saitama, Japan
Volume :
24
Issue :
4
fYear :
2012
Firstpage :
228
Lastpage :
230
Abstract :
We developed a periodically poled LiNbO3 wavelength converter with its nonlinear coupling strength changed along the propagation length to improve the quasi-phase-matched (QPM) wavelength bandwidth. The apodization is realized by sampling the QPM grating to attain fabrication easiness. The wavelength response showed a broad and flat-top wavelength conversion characteristic in a second harmonic generation. The QPM bandwidth of the wavelength conversion was 2.2 nm, which is sufficiently broad to convert optical pulses for a 160-Gb/s system.
Keywords :
chirp modulation; lithium compounds; optical harmonic generation; optical phase matching; optical wavelength conversion; LiNbO3; apodization structure; bit rate 160 Gbit/s; chirped periodically poled wavelength converter; flat-top wavelength conversion; nonlinear coupling strength; propagation length; quasi-phase-matched wavelength bandwidth; second harmonic generation; wavelength response; Bandwidth; Chirp; Couplings; Gratings; Nonlinear optics; Optical waveguides; Optical wavelength conversion; Apodization; chirped periodically poled ${rm LiNbO}_{3}$
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2011.2175914
Filename :
6104098
Link To Document :
