Patent ID: 6411428
Filing Date: 2002-06-25
Classification: G02B,H01S

Abstract:
An optical amplifier comprising:a prism; a first optical channel carrying an input radiation signal along a direction, said channel containing a material that amplifies the radiation signal when stimulated; a second optical channel carrying a pump radiation signal; a layer that reflects the pump radiation signal towards the first optical channel or a channel optically connected thereto causing the material to be stimulated and the input radiation signal amplified, said layer passing said amplified input radiation signal; a first surface of the prism that passes a first portion of the amplified input radiation signal passed by the layer for monitoring and reflects a second portion of the input radiation signal passed by the layer; an output channel carrying the second portion of the input radiation signal reflected by the first surface of the prism; and a second surface of the prism that is in an optical path between the first surface of the prism and the output channel, wherein the two surfaces are not parallel to each other.