Optical coupler ultizing prisms

Details Optical coupler ultizing prisms Optical coupler ultizing prisms

1991-03-01

1992-06-23

Lee, John D.

Optical waveguides

With optical coupler

Input/output coupler

385 33, G02B 634

Patent

active

051250535

ABSTRACT:
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 coupled is introduced into an Er doped fiber, in which the signal beam is amplified directly.

REFERENCES:
patent: 4152045 (1979-05-01), Hammer et al.
patent: 4252404 (1981-02-01), Divita

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