Title:
光スイッチ
Document Type and Number:
Japanese Patent JP4007985
Kind Code:
B2
Abstract:
The present invention provides an optical switch whose operational characteristics do not change, and which is not affected by polarization cross talk, even when the wavelength of a signal light or the ambient temperature of the optical switch varies. The optical switch comprises first and second polarization splitting/combining modules, ( 10,18 ), first and second polarization-maintaining single-mode fibers ( 12, 16 ), a first polarization plane conversion portion ( 14 ), third and fourth polarization-maintaining single-mode fibers ( 22, 26 ), and a second polarization plane conversion portion ( 24 ).
Inventors:
Shin Arahira
Application Number:
JP2004239054A
Publication Date:
November 14, 2007
Filing Date:
August 19, 2004
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
G02F1/365; G02F1/313
Domestic Patent References:
| JP5341332A |
Other References:
Electronics Letters,1992年,Vol.28,No.20,1864-1866
Attorney, Agent or Firm:
Takashi Ogaki