Macquarie University

Graeme P A Malcolm

Helen Margaret Pask

David James Spence

Jipeng Lin

Craig James Hamilton

Richard Paul Mildren

Stephen Webster

Ondrej Kitzler

Nils Hempler

Helen M Pask

Craig J Hamilton

A single longitudinal mode ring Raman laser including: a pump source outputting a pump light power, resonantly coupled to a first ring resonator; a optical measurement and piezo-actuator for stabilising the resonant coupling of the pump light power to a first ring resonator; a first ring resonator including a Raman gain medium, wherein the Raman gain medium receives the pump light power and undergoes Raman lasing generating resonated Stokes power at the corresponding Stokes output wavelength; the first ring resonator acting as a feedback loop for the pump light power and the resonated Stokes power and outputting a portion of the Stokes power as the laser output.

Single longitudinal mode ring Raman laser

A tunable lasing device including a vertical external cavity surface emitting laser, adapted to generate a fundamental laser beam in response to pumping from a pump source, said fundamental laser beam having a fundamental wavelength and a fundamental linewidth; a fundamental resonator cavity adapted to resonate the fundamental beam therein; a first optical element located within the fundamental resonator cavity for control of the fundamental linewidth of the fundamental beam; a Raman resonator located at least partially in said fundamental resonator adapted to receive the fundamental beam and comprising therein, a solid state Raman active medium located therein for generating at least a first Stokes beam from the fundamental beam wherein said Raman resonator cavity is adapted to resonate said Stokes beam therein and further adapted to emit an output beam; and further comprising a nonlinear medium located within the Raman resonator cavity for nonlinear frequency conversion of at least one of the beams present in the fundamental or the Raman resonator cavity; said tunable lasing device further comprising an output coupler adapted to emit an output beam, said output beam comprising at least a portion of said frequency converted beam being derived from at least one of the resonating beams in said fundamental or said Raman resonator cavities.

Wavelength versatile vecsel raman laser

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Ochtertyre, United Kingdom

Graeme P A Malcolm