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Your search keyword '"Kuwatsuka, Haruhiko"' showing total 2 results
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2 results on '"Kuwatsuka, Haruhiko"'

1. Nonlinear gain dynamics in quantum-dot optical amplifiers and its application to optical communication devices

Author

Akiyama, Tomoyuki, Kuwatsuka, Haruhiko, Simoyama, Takashi, Nakata, Yoshiaki, Mukai, Kohki, Sugawara, Mitsuru, Wada, Osamu, and Ishikawa, Hiroshi

Subjects
Nonlinear optics -- Research, Quantum electronics -- Research, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Research describing the ultrafast gain dynamics in quantum dot optical amplifiers is presented. In particular three nonlinear processes are investigated by pump probe and four wave mixing techniques.

Published
2001

2. Enhancement of third-order nonlinear optical susceptibilities in compressively strained quantum wells under the population inversion condition

Author

Kuwatsuka, Haruhiko, Simoyama, Takasi, and Ishikawa, Hiroshi

Subjects
Quantum wells -- Design and construction, Semiconductor lasers -- Design and construction, Optoelectronic devices -- Design and construction, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Compressively strained quantum wells are found to produce third-order optical nonlinear susceptibilities with an enhancement factor of 3 from 0.8% compressive strain, compared to nonstrained quantum wells with an equitable linear gain.

Published
1999

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