Multi-frequency Raman amplifier pump source
AssigneeMetroPhotonics Inc.
InventorMichael Davies
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Abstract
In accordance with the present invention a multifrequency Raman pump laser cavity is disclosed comprising of an angularly dispersive element optically coupled to a shared waveguide terminated in a partially reflecting facet; a plurality of laser diode sources for radiating at frequencies for Raman amplification each for providing laser light at a different frequency and spatially oriented in relation to the angular dispersive element such that light emitted from each source is reflected from the angularly dispersive element toward a same output port; at least two partially reflecting coating for forming a laser cavity therebetween wherein the grating is within the laser cavity or defines a boundary thereto.
Claims21
A multifrequency Raman pump laser cavity comprising, a plurality of light sources having a gain medium associated therewith for radiating at frequencies for Raman amplification each for providing laser light at a different frequency and spatially oriented in relation to an angular dispersive element such that light emitted from each source is reflected from the angular dispersive element toward a same output port and at least two partially reflecting coatings for forming a laser cavity therebetween wherein the angular dispersive element is one of within the laser cavity and defining a boundary thereto wherein at least two of the plurality of laser diode sources, the angular dispersive element and the at least two partially reflecting coatings are disposed on a same substrate.
A multifrequency EDFA pump laser cavity comprising, a plurality of light sources having a gain medium associated therewith for radiating at frequencies for EDFA amplification each for providing laser light at a different frequency and spatially oriented in relation to an angular dispersive element such that light emitted from each source is reflected from the angular dispersive element toward a same output port and at least two partially reflecting coatings for forming a laser cavity therebetween wherein the angular dispersive element is one of within the laser cavity and defining a boundary thereto wherein at least two of the plurality of laser diode sources, the angular dispersive element and the at least two partially reflecting coatings are disposed on a same substrate.
A multifrequency pump laser cavity comprising, a plurality of light sources having a gain medium associated therewith for radiating at a first set of frequencies for EDFA amplification and a second set of frequencies for Raman amplification each for providing laser light at a different frequency and spatially oriented in relation to an angular dispersive element such that light emitted from each source is reflected from the angular dispersive element toward a same output port;
- and, at least three partially reflecting coatings for forming a laser cavity therebetween wherein the angular dispersive element is one of within the laser cavity and defining a boundary thereto wherein at least two of the plurality of laser diode sources, the angular dispersive element and the at least three partially reflecting coatings are disposed on a same substrate.
Dependencies are inferred from the claim text.