Optical wavelength compounding/dividing device

Details Optical wavelength compounding/dividing device Optical wavelength compounding/dividing device

G - Physics

02

B

88/98

G02B 5/04 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01) G02B 27/14 (2006.01)

Patent

CA 1280921

OPTICAL WAVELENGTH COMPOUNDING/DIVIDING DEVICE ABSTRACT OF THE DISCLOSURE An optical device for dividing light depending on an optical wavelength thereof, comprises: a single input optical fiber and an output fiber array consisting of a plurality of optical fibers, and spectroscopic grating and a tetrahedral dispersion-dividing prism disposed on an optical path therein. The prism has a face defining a dispersion-dividing part consisting of a plurality of step-like V-shaped grooves each having an apex of 60° and two inclined surfaces, so that a light beam, the position of which is shifted depending on the wavelength thereof, moves from groove to groove, and within the region of one groove, the light beam is reflected first at one of the inclined surfaces and then reflected at the other surface so as to change the direction of the light beam.

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