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Proceedings Paper

Self-align electrode separation of directionally coupled semiconductor optical amplifier
Author(s): Mitsuru Takenaka; Masumi Saitoh; Yoshiaki Nakano
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Paper Abstract

We have demonstrated the self-align electrode separation technique for directionally coupled semiconductor optical amplifiers (DC-SOA). Using oblique electron-beam evaporation, the electrodes between the coupled waveguides of the DC-SOA were separated without any lithography. We have obtained isolation resistance between the electrodes of about 130 (Omega) , and satisfactory L-I characteristics of the DC-SOA were measured. We have also shown all-optical flip-flop operation using the electrode separated DC-SOA by numerical analysis, and the lasing threshold current control by optical injection was experimentally demonstrated, thus confirming the possibility of all-optical flip-flop operation.

Paper Details

Date Published: 30 July 2001
PDF: 8 pages
Proc. SPIE 4532, Active and Passive Optical Components for WDM Communication, (30 July 2001); doi: 10.1117/12.436029
Show Author Affiliations
Mitsuru Takenaka, Univ. of Tokyo (Japan)
Masumi Saitoh, Univ. of Tokyo (Japan)
Yoshiaki Nakano, Univ. of Tokyo and CREST/Japan Science and Technology Corp. (Japan)

Published in SPIE Proceedings Vol. 4532:
Active and Passive Optical Components for WDM Communication
Achyut Kumar Dutta; Abdul Ahad Sami Awwal; Niloy K. Dutta; Katsunari Okamoto, Editor(s)

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