DocumentCode :
830842
Title :
Novel design method for all-optical ultrafast gate switches using cascaded second-order nonlinear effect in quasi-phase matched LiNbO3 devices
Author :
Fukuchi, Yutaka ; Kikuchi, Kazuro
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
Volume :
14
Issue :
10
fYear :
2002
Firstpage :
1409
Lastpage :
1411
Abstract :
The authors propose a novel method of designing all-optical ultrafast gate switches that employ the cascade of the second harmonic generation and difference frequency mixing in quasi-phase matched LiNbO/sub 3/ devices. In this design method, the device length is maximized under the condition that crosstalk of the switch is maintained below a certain allowable value at a given bit rate. Following the design method, the authors find that the switching efficiency can significantly be enhanced by compensation for the walkoff between the fundamental and second harmonic pulses.
Keywords :
demultiplexing equipment; high-speed optical techniques; lithium compounds; optical crosstalk; optical design techniques; optical frequency conversion; optical harmonic generation; optical phase matching; optical switches; time division multiplexing; LiNbO/sub 3/; all-optical ultrafast gate switches; cascaded second-order nonlinear effect; crosstalk; design method; difference frequency mixing; fundamental pulses; optical time-division demultiplexer; quasi-phase matched LiNbO/sub 3/ devices; second harmonic generation; second harmonic pulses; switching efficiency; walkoff compensation; Bit rate; Design methodology; Fiber nonlinear optics; Nonlinear optics; Optical crosstalk; Optical harmonic generation; Optical mixing; Optical pumping; Optical switches; Optical wavelength conversion;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2002.802086
Filename :
1037533
Link To Document :
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