Shinji Iwatsuka
TDK
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Publication
Featured researches published by Shinji Iwatsuka.
IEEE Photonics Technology Letters | 2004
Naoki Hanashima; Kenjiro Hata; Reio Mochida; Toru Oikawa; Tohru Kineri; Shinji Iwatsuka
A novel hybrid configuration of optical circulator is presented. A Garnet-Quartz composite (GQC), which is comprised of four quarter-wave plates and Faraday rotator, is embedded into a groove formed across the branching waveguides pair of Mach-Zehnder interferometer. Optical path difference of the pair is 0 rad for forward path, whereas /spl pi/ for backward path with the GQC, realizing nonreciprocal operation. The forward-to-reverse isolation of 16.2-29.8 dB and the insertion loss of 8.8-9.4 dB are obtained.
Archive | 1992
Shinji Iwatsuka; Naoki Hanashima; Yoshikazu Narumiya
Archive | 2001
Shinji Iwatsuka
Archive | 1996
Shinji Iwatsuka
Archive | 1992
Shinji Iwatsuka; Yoshikazu Narumiya; Makoto Nakazawa
Archive | 2000
Shinji Iwatsuka; Kenjiro Hata
Archive | 1993
Shinji Iwatsuka; Kenjiro Hata; Masaaki Kobayashi
Archive | 1997
Shinji Iwatsuka; Makoto Sekijima; Kenjiro Hata
Archive | 2004
Shinji Iwatsuka
Archive | 1995
Shinji Iwatsuka; Masaaki Kobayashi; Kenjiro Hata
