Optical coupler

Details Optical coupler Optical coupler

G - Physics

02

B

88/97.5

G02B 6/28 (2006.01) G02B 6/34 (2006.01) G02B 6/42 (2006.01) G02B 27/10 (2006.01) H01S 3/094 (2006.01)

Patent

CA 2037350

Abstract of the Disclosure An optical coupler is disclosed which couples a signal beam and a pumping beam having proximate wavelengths to each other. The optical coupler includes a first prism having an included angle of 45 degrees, and a triangular prism having an apex angle of 22.5 degrees and adhered to a face of the first prism on which an optical wavelength multiplexing film is formed. The signal beam and the pumping beam multiplexed by the optical coupler is introduced into an Er doped fiber, in which the signal beam is amplified directly.

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