Patent ID: 6876689

Claim:
A diode laser injection seeded, cavity length stabilized ring laser, comprising: a semiconductor diode laser source; a ring laser optical resonator cavity containing a tunable solid-state gain material, said gain material having optical gain at the frequency of the diode laser source; and means for coupling a light beam from the diode laser source into said optical resonator cavity wherein the optical resonator cavity incorporates a tunable solid-state laser material and is injected with the light beam from said semiconductor diode laser; and wherein said optical resonator comprises: i) an injection coupler to introduce the diode laser beam into the optical resonator cavity and align it with the resonant modes of the cavity; ii) at least one pump chamber containing the tunable solid-state gain material and means for optically pumping said gain material; iii) a pöckels cell; and iv) a wavelength selection device, said device comprising a birefringent tuner or an etalon.