A method and apparatus for characterizing an optical element. The optical element is part of a laser and is mounted on a translation stage to scan the optical element transverse to an intracavity laser beam. A performance characteristic of the laser is recorded as a function of position of the optical element.

A method and apparatus for characterizing an optical element. The optical element is part of a laser and is mounted on a translation stage to scan the optical element transverse to an intracavity laser beam. A performance characteristic of the laser is recorded as a function of position of the optical element.

A laser system includes a first laser cavity to output a laser light along a first path, a first mirror to receive the laser light from the first laser cavity, and redirect the laser light along a second path that is different than the first path, a second mirror to receive the laser light from the first mirror, and redirect the laser light along a third path that is different than the first path and the second path, a beam splitter located at a first position on the third path, a beam combiner located at a second position on the third path; and a coupling lens assembly, the coupling lens assembly including a lens located at a third position on the third path, wherein the coupling lens assembly moves the lens in x-, y-, and x-directions.

A laser emitting apparatus includes a detection and control system, a pump source, a first reflecting mirror group, a gain medium, and a beam deflection system on an optical path. The gain medium is pumped by the pump source to emit fluorescence, and is stimulated by resonance, between the first reflecting mirror group and a laser receiving apparatus, of the fluorescence to emit laser light. The beam deflection system emits the fluorescence or the laser light emitted by the gain medium, and emits the fluorescence or the laser light reflected by the laser receiving apparatus into the gain medium. The detection and control system adjusts the beam deflection system to preset emission angles, detects light intensities of the fluorescence or the laser light, and a light spot position of the laser light on the detection and control system, and adjusts the emission angle based on the light spot position.

A laser emitting apparatus includes a detection and control system, a pump source, a first reflecting mirror group, a gain medium, and a beam deflection system on an optical path. The gain medium is pumped by the pump source to emit fluorescence, and is stimulated by resonance, between the first reflecting mirror group and a laser receiving apparatus, of the fluorescence to emit laser light. The beam deflection system emits the fluorescence or the laser light emitted by the gain medium, and emits the fluorescence or the laser light reflected by the laser receiving apparatus into the gain medium. The detection and control system adjusts the beam deflection system to preset emission angles, detects light intensities of the fluorescence or the laser light, and a light spot position of the laser light on the detection and control system, and adjusts the emission angle based on the light spot position.

In various embodiments, emitter modules include a laser source and (a) a refractive optic, (b) an output coupler, or (c) both a refractive optic and an output coupler. Either or both of these may be situated on mounts that facilitate two-axis rotation. The mount may be, for example, a conventional, rotatively adjustable “tip/tilt” mount or gimbal arrangement. In the case of the refractive optic, either the optic itself or the beam path may be adjusted; that is, the optic may be on a tip/tilt mount or the optic may be replaced with two or more mirrors each on tip/tilt mount.

In various embodiments, emitter modules include a laser source and (a) a refractive optic, (b) an output coupler, or (c) both a refractive optic and an output coupler. Either or both of these may be situated on mounts that facilitate two-axis rotation. The mount may be, for example, a conventional, rotatively adjustable “tip/tilt” mount or gimbal arrangement. In the case of the refractive optic, either the optic itself or the beam path may be adjusted; that is, the optic may be on a tip/tilt mount or the optic may be replaced with two or more mirrors each on tip/tilt mount.

Disclosed is an optical kit for forming an optical system including an external resonator of a laser light source that outputs laser light, the optical kit including: a base including a main surface; a light source holding part provided on the main surface for holding the laser light source; and a holding part provided on the main surface for holding the optical system, wherein the holding part has a reflector holding part for holding the corner reflector, a first opening member holding part for holding the first opening member, and a second opening member holding part for holding the second opening member, and wherein the first opening member holding part is positioned closer to the reflector holding part than an emission surface of the laser light of the laser light source held by the light source holding part.

A laser system includes a first laser cavity to output a laser light along a first path, a first mirror to receive the laser light from the first laser cavity, and redirect the laser light along a second path that is different than the first path, a second mirror to receive the laser light from the first mirror, and redirect the laser light along a third path that is different than the first path and the second path, a beam splitter located at a first position on the third path, a beam combiner located at a second position on the third path; and a coupling lens assembly, the coupling lens assembly including a lens located at a third position on the third path, wherein the coupling lens assembly moves the lens in x-, y-, and x-directions.

A dual optical frequency comb light-emitting device includes a first optical-frequency-comb laser source that includes a first laser resonator having a first optical path length, a second optical-frequency-comb laser source that includes a second laser resonator having a second optical path length different from the first optical path length, and an optical coupler that causes a first portion of first optical-frequency-comb laser light emitted from the first laser resonator to enter the second laser resonator. The first optical-frequency-comb laser source outputs a second portion of the first optical-frequency-comb laser light to an outside. The second optical-frequency-comb laser source outputs second optical-frequency-comb laser light emitted from the second laser resonator to the outside.