Embodiments are generally directed to a self-cooled laser integrated device and substrate architecture. An embodiment of a device includes a substrate or printed circuit board (PCB); a component coupled with the substrate or PCB, the component including an cooling agent on at least one side of the component; one or more laser sources, at least a first laser source of the one or more laser sources being implemented to direct laser light onto the cooling agent; and a controller to drive the laser source, wherein the cooling agent provides cooling for the component when the laser light is directed on the engineered cooling agent.

The present invention provides a rotating chalcogenide gain media ring to provide un-precedented power generation with minimal thermal lensing for CW lasing in the mid-IR spectrum.

A laser pumping method pumps a primary amount of energy into a laser medium to populate an intermediate level near an upper laser level. A lesser amount of energy is pumped into the laser medium to populate an excited level that lies above the upper laser level and transfers atomic or molecular population to the upper laser level by a nonradiative process. A laser device includes a laser medium supporting four levels, including a lower laser level, an upper laser level, an excited level above the laser level from which population transfers to the upper laser level via nonradiative transition, and an intermediate level within a few kT of the upper laser level.

A laser pumping method pumps a primary amount of energy into a laser medium to populate an intermediate level near an upper laser level. A lesser amount of energy is pumped into the laser medium to populate an excited level that lies above the upper laser level and transfers atomic or molecular population to the upper laser level by a nonradiative process. A laser device includes a laser medium supporting four levels, including a lower laser level, an upper laser level, an excited level above the laser level from which population transfers to the upper laser level via nonradiative transition, and an intermediate level within a few kT of the upper laser level.

A method and device for cooling electronics is disclosed. The device includes a doped crystal configured to resonate at a Stark manifold resonance capable of cooling the crystal to a temperature of from about 110K to about 170K. The crystal host resonates in response to input from an excitation laser tuned to exploit the Stark manifold resonance corresponding to the cooling of the crystal.

The present application is generally directed to compositions and methods for forming glass matrices which may exhibit anti-Stokes fluorescence. The glass matrices of the present disclosure are formed such that a thermal characteristic can be tuned, such as the extent to which cooling by anti-Stokes fluorescence occurs. Optical fibers, such as those used in lasers, may be formed out of the presently described glass matrices. In embodiments, glass matrices of the present disclosure may form a cladding layer around an optical fiber. Further, glass matrices of the present disclosure may be used in combination with a device or to provide cooling to said device.

A laser cooling system and a method of laser cooling are disclosed. The laser cooling system includes a multi-pass optical cavity; a first mirror positioned at a first end of the multi-pass optical cavity; and a second mirror positioned at a second end of the multi-pass optical cavity, wherein the first mirror or the second mirror comprises a spectrally selective coating to suppress amplified spontaneous emission (ASE) and parasitic lasing to avoid undesired heat generation in a material being cooled in the multi-pass optical cavity.