Patent ID: 7978738

Claim:
A wavelength-converting laser system comprising: a pump laser configured to emit first laser radiation at a first wavelength; an optical parametric oscillator (OPO) crystal operatively coupled to the pump laser, the OPO crystal being configured to receive the first laser radiation from the pump laser at the first wavelength and emit second laser radiation at a second wavelength, the second wavelength being longer than the first wavelength; and an arsenic sulfide (As—S) glass fiber situated in a laser cavity and being operatively coupled to the OPO crystal; wherein the As—S glass fiber is configured to receive the second laser radiation emitted by the OPO at the second wavelength and emit third laser radiation at a third wavelength as a final output of the laser system, the third wavelength being longer than the second wavelength, a difference between the second and third wavelengths corresponding to a Stokes shift associated with the As—S glass fiber.