Source, system and method for generating amplified stimulated emission using a coupler mechanism

A system comprising:

• a pump source for generating pump light;
• a doped fiber for generating amplified stimulated emission based on the pump light;
• a coupler mechanism for receiving the pump light from the pump source, for transmitting the pump light to the doped fiber, for transmitting the amplified stimulated emission from the doped fiber and for isolating the pump light and the amplified stimulated emission using phase conditions;
• and
• a sensor for sensing a parameter using the amplified stimulated emission.

A method for generating amplified stimulated emission comprising the steps of:

• generating a pump light;
• transmitting the pump light through a coupler mechanism to a doped element;
• generating amplified stimulated emission by the doped fiber based on the pump light;
• transmitting the amplified stimulated emission through the coupler mechanism;
• and
• isolating the pump light and the amplified stimulated emission using phase conditions.

A source for amplifying an input signal comprising:

• a pump source for generating pump light;
• a doped fiber for generating amplified stimulated emission based on the pump light, the amplified stimulated emission being capable of amplifying the input signal;
• and
• a coupler mechanism for receiving the pump light from the pump source, for transmitting the pump light to the doped fiber, for receiving the input signal, for transmitting the input signal into the doped fiber, and for transmitting the amplified input signal away from the doped fiber.