Patent ID: 6788712
Filing Date: 2004-09-07
Classification: H01S

Abstract:
A multiple wavelength laser source comprising:a loop mirror comprising a loop of active fiber, and a first coupler having four ports, the loop of active fiber being connected to a first and second port of the first coupler; at least one pump means for injecting pump energy into the loop of active fiber remote from the first coupler, thereby generating amplified spontaneous emissions; and a plurality of wavelength-selective reflection devices having different selected wavelengths and coupled to at least a third port of the first coupler; wherein each reflection device is for reflecting back into the loop of active fiber a first portion, having a selected wavelength, of the amplified spontaneous emission, and directing a second portion of the amplified spontaneous emission away from the loop of active fiber to a first output port, which is optically coupled to at least one of the reflection devices.