Patent ID: 6628455
Filing Date: 2003-09-30
Classification: G02B,H01S

Abstract:
An optical amplifier comprising:an optical block; 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 optical block 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 optical block; and a second surface of the optical block that is in an optical path between the first surface of the optical block and the output channel.