Isolated optical coupler

Details Isolated optical coupler Isolated optical coupler

1990-12-20

1992-01-21

Healy, Brian

Optical waveguides

With optical coupler

Input/output coupler

372 6, 385 47, 359131, G02B 632, H01S 330, G02F 100

Patent

active

050823434

ABSTRACT:
An isolated optical coupler arrangement is disclosed which is capable of providing a pump signal and a message signal to a fiber amplifier. The coupler comprises a pair of lenses with a wavelength selective device disposed therebetween. The wavelength selective device is chosen to reflect the pump signal applied as an input to the first lens, and transmit the applied message signal. An optical isolator is inserted in optical path between the wavelength selective device and the second lens to further improve the performance of the coupler.

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