DocumentCode
855423
Title
Intersubband all-optical switching in submicron high-mesa SCH waveguide structure with wide-gap II-VI-based quantum wells
Author
Akita, K. ; Akimoto, R. ; Hasama, T. ; Ishikawa, H. ; Takanashi, Y.
Author_Institution
Ultrafast Photonic Devices Lab., Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki
Volume
42
Issue
23
fYear
2006
Firstpage
1352
Lastpage
1353
Abstract
An all-optical switch using intersubband transition in wide-gap II-VI-based quantum wells in an improved waveguide structure is presented. The waveguide exhibits a separate confinement heterostructure (SCH) and submicron high-mesa waveguide for stronger optical confinement. A reduction of 39% is achieved in control pulse energy for a 10 dB switching extinction ratio while maintaining a subpicosecond response
Keywords
II-VI semiconductors; high-speed optical techniques; optical switches; optical waveguides; quantum well devices; wide band gap semiconductors; SCH waveguide structure; all-optical switching; intersubband transition; optical confinement; separate confinement heterostructure; submicron high-mesa waveguide; wide-gap II-VI-based quantum wells;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20062732
Filename
4027824
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