Optical waveguides – Integrated optical circuit
Reexamination Certificate
2008-07-08
2008-07-08
Pak, Sung (Department: 2874)
Optical waveguides
Integrated optical circuit
C385S129000
Reexamination Certificate
active
07397977
ABSTRACT:
A wave transmission medium includes an input port3-1and an output port3-2. A field distribution1and a field distribution2are obtained by numerical calculations. The field distribution1is a field distribution of the propagation light (forward propagation light) launched into the input port3-1. The field distribution2is a field distribution of the phase conjugate light (reverse propagation light) resulting from reversely transmitting from the output port side an output field that is expected to be output from the output port3-2when an optical signal is launched into the input port3-1. According to the field distributions1and2, a spatial refractive index distribution is calculated such that the phase difference between the propagation light and reverse propagation light is eliminated at individual points (x, z) in the medium.
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Abe Yoshiteru
Asakawa Shuichiro
Hashimoto Toshikazu
Kitagawa Takeshi
Kitoh Tsutomu
Nippon Telegraph and Telephone Corporation
Pak Sung
Stahl Mike
Workman Nydegger
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