Title:
OPTICAL SIGNAL PROCESSOR
Document Type and Number:
Japanese Patent JP2003270480
Kind Code:
A
Abstract:
To provide an optical signal processor which can be down-sized.
When a fiber collimator 11 collimates and emits signal lights of multiple wavelengths λ1 to λ4, the signal lights of multiple wavelengths λ1 to λ4 are diffracted by a diffraction grating 12 at angles of diffraction corresponding to the wavelengths and separated by the wavelengths. The separated signal lights of the respective wavelengths are outputted to spatially different optical paths. The signal light of the wavelength λn has its optical path bent by a prism 13n to widen an optical path interval and is inputted to a fiber collimator 14n.
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Inventors:
TAKUSHIMA MICHIKO
SANO TOMOKI
SUGANUMA HIROSHI
TANAKA TATSUHIKO
SANO TOMOKI
SUGANUMA HIROSHI
TANAKA TATSUHIKO
Application Number:
JP2002068894A
Publication Date:
September 25, 2003
Filing Date:
March 13, 2002
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
G02B5/18; G02B6/293; G02B6/34; (IPC1-7): G02B6/293; G02B5/18
Attorney, Agent or Firm:
Yoshiki Hasegawa (3 outside)