There was the problem that the pressure of the laser medium rises from the target value by the heat when generating laser light. The laser oscillator includes a controller, laser medium flow path, resonator part, blower, pressure detecting part, laser medium supply-exhaust part, and temporary stop command part. The controller controls the resonator part to stop to generate laser light if a temporary stop is commanded, controls the blower 18 to slow the rotational speed of the blower from the first rotational speed to the second rotational speed, and controls the laser medium supply-exhaust part so that the pressure is the second target value lower than the pressure at the time when the rotational speed of the blower is the second rotational speed.

There was the problem that the pressure of the laser medium rises from the target value by the heat when generating laser light. The laser oscillator includes a controller, laser medium flow path, resonator part, blower, pressure detecting part, laser medium supply-exhaust part, and temporary stop command part. The controller controls the resonator part to stop to generate laser light if a temporary stop is commanded, controls the blower 18 to slow the rotational speed of the blower from the first rotational speed to the second rotational speed, and controls the laser medium supply-exhaust part so that the pressure is the second target value lower than the pressure at the time when the rotational speed of the blower is the second rotational speed.

Gaseous laser systems and related techniques are disclosed. Techniques disclosed herein may be utilized, in accordance with some embodiments, in providing a gaseous laser system with a configuration that provides (A) pump illumination with distinct edge surfaces for an extended depth and (B) an output beam illumination from a resonator cavity with distinct edges in its reflectivity profile, thereby providing (C) pump beam and resonator beam illumination on a volume so that the distinct edge surfaces of its pump and resonator beam illumination are shared-edge surfaces with (D) further edge surfaces of the amplifier volume at the surfaces illuminated directly by the pump or resonator beams, as defined by optical windows and (optionally) by one or more flowing gas curtains depleted of the alkali vapor flowing along those optical windows. Techniques disclosed herein may be implemented, for example, in a diode-pumped alkali laser (DPAL) system, in accordance with some embodiments.

A coherent light source provides spontaneous emission (Dicke superradiance/subradiance) using a dilute and optically thin cloud of disordered atoms. The coherent light source provides improved noise statistics over that of a laser and accordingly, may be used in sensitive interferometric applications such as light gyroscopes.

A coherent light source provides spontaneous emission (Dicke superradiance/subradiance) using a dilute and optically thin cloud of disordered atoms. The coherent light source provides improved noise statistics over that of a laser and accordingly, may be used in sensitive interferometric applications such as light gyroscopes.

An optical cavity resonator, comprising a transparent or nearly transparent dielectric, and having gas or plasma provided thereabout, the resonator constructed to have an optical resonance that extends to partially spatially overlap with said gas or plasma, the gas or plasma providing an optical gain at a frequency overlapping a resonant frequency of said resonator, wherein the optical cavity, with plasma, is constructed to be pumped so that the plasma is able to amplify light at a frequency approximately related to an atomic transition of said gas or plasma.

An optical cavity resonator, comprising a transparent or nearly transparent dielectric, and having gas or plasma provided thereabout, the resonator constructed to have an optical resonance that extends to partially spatially overlap with said gas or plasma, the gas or plasma providing an optical gain at a frequency overlapping a resonant frequency of said resonator, wherein the optical cavity, with plasma, is constructed to be pumped so that the plasma is able to amplify light at a frequency approximately related to an atomic transition of said gas or plasma.

Systems, methods, and devices disclosed herein provide gas pressure profile control for optical output generation. Systems include a light source configured to generate laser light, and a gas pressure profile controller. The gas pressure profile controller includes a first housing portion, a second housing portion coupled to the first housing portion, wherein the first housing portion and the second housing portion include an internal chamber, wherein the internal chamber includes an interaction region. The gas pressure profile controller includes a first optical path configured to receive the laser light, and a second optical path configured to transmit an optical output generated, at least in part, based on an interaction between the laser light and a gas, the second optical path being further configured to constrict a flow of gas from the interaction region. Systems include a gas source configured to provide a gas to the gas pressure profile controller.

Systems, methods, and devices disclosed herein provide gas pressure profile control for optical output generation. Systems include a light source configured to generate laser light, and a gas pressure profile controller. The gas pressure profile controller includes a first housing portion, a second housing portion coupled to the first housing portion, wherein the first housing portion and the second housing portion include an internal chamber, wherein the internal chamber includes an interaction region. The gas pressure profile controller includes a first optical path configured to receive the laser light, and a second optical path configured to transmit an optical output generated, at least in part, based on an interaction between the laser light and a gas, the second optical path being further configured to constrict a flow of gas from the interaction region. Systems include a gas source configured to provide a gas to the gas pressure profile controller.