Abstract: A method for optimizing startup time and efficiency for a WBC laser diode system having numerous diode elements, wherein each diode element is measured, an optimal band region is determined for each diode element, and placed in an optimal placement within an array of diode elements.

Abstract: In various embodiments, a laser apparatus includes a beam emitter, first and second mounts disposed on opposing sides of the beam emitter and in electrical and thermal contact therewith, and a housing body for conducting heat away from the beam emitter.

Abstract: In various embodiments, an integrated laser apparatus includes a substrate, portions of which define a plurality of input waveguides, a dispersive element, and an output waveguide, an output facet of the output waveguide being partially reflective so as to transmit a multi-wavelength output beam.

Abstract: A system and method for creating a robust anti-reflective surface on a fiber end using various etching techniques to create a shallow grating that creates an effective index of refraction region to transition from air or the input material to the material of the fiber optical cable.

Abstract: A system and method for increasing efficiency and power output of a multi-wavelength beam combining system through providing a common output coupler to reflect feedback that stabilizes or individually seeds each emitter, and wherein the individual feedback is preserved by mitigating cross-coupling, wherein a multi-wavelength beam comprised of radiation having a plurality of wavelengths, high brightness and power.

Abstract: In various embodiments, a laser apparatus includes a beam emitter, first and second mounts disposed on opposing sides of the beam emitter and in electrical and thermal contact therewith, and a housing body for conducting heat away from the beam emitter.

Abstract: Systems and techniques for processing materials using wavelength beam combining for high-power operation in concert with interferometry to detect the depth or height of features as they are created.

Abstract: Systems and techniques for optimizing the operation of a beam emitter during material processing maintain an optimal polarization of the beam with respect to the material throughout processing—e.g., even as the beam path varies or the nature or thickness of the material changes.

Abstract: A system and method for reducing the M2 value of a single asymmetric laser emitter while maintaining the power output of the emitter. In some embodiments the brightness of the output of such a system is equivalent to a portioned section of the single laser emitter. A WBC step is performed along a portioned or non-portioned single laser emitter to reduce the M2 value.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: A method for optimizing startup time and efficiency for a WBC laser diode system having numerous diode elements, wherein each diode element is measured, an optimal band region is determined for each diode element, and placed in an optimal placement within an array of diode elements.

Abstract: A system and method for decreasing the optical pathway length, varying brightness output quality, and stabilizing beams along the non-beam combining dimension in a WBC system.

Abstract: One of first and second beams (28) of corresponding first and second light (13) are projected into an atmosphere (20) and at least one physical property of the atmosphere (20) is detected from the interference pattern (47) generated from the resulting scattered light (30). The first and second beams (20) are selected responsive to either a detected signal-to-noise ratio (SNR) or a detected aerosol-to-molecular ratio (AMR). The wavelength (740) of the first light (13) provides for either molecular or aerosol scattering, whereas the wavelength (738) of the second light (13) provides for primarily only aerosol scattering. In accordance with a second aspect, scattered light (30) from one or more beams (28) of substantially monochromatic light (13) projected into the atmosphere (20) and received from a plurality of interaction regions (17) or measurement volumes (52) provides for determining wind power (P*) within a region of the atmosphere (20).

Abstract: One of first and second beams (28) of corresponding first and second light (13) are projected into an atmosphere (20) and at least one physical property of the atmosphere (20) is detected from the interference pattern (47) generated from the resulting scattered light (30). The first and second beams (20) are selected responsive to either a detected signal-to-noise ratio (SNR) or a detected aerosol-to-molecular ratio (AMR). The wavelength (740) of the first light (13) provides for either molecular or aerosol scattering, whereas the wavelength (738) of the second light (13) provides for primarily only aerosol scattering. In accordance with a second aspect, scattered light (30) from one or more beams (28) of substantially monochromatic light (13) projected into the atmosphere (20) and received from a plurality of interaction regions (17) or measurement volumes (52) provides for determining wind power (P*) within a region of the atmosphere (20).

Abstract: A system and method for reducing the M2 value of a single asymmetric laser emitter while maintaining the power output of the emitter. In some embodiments the brightness of the output of such a system is equivalent to a portioned section of the single laser emitter. A WBC step is performed along a portioned or non-portioned single laser emitter to reduce the M2 value.

Abstract: A system and method for decreasing the optical pathway length, varying brightness output quality, and stabilizing beams along the non-beam combining dimension in a WBC system.

Abstract: A system and method for increasing efficiency and power output of a multi-wavelength beam combining system through providing a common output coupler to reflect feedback that stabilizes or individually seeds each emitter, and wherein the individual feedback is preserved by mitigating cross-coupling, wherein a multi-wavelength beam comprised of radiation having a plurality of wavelengths, high brightness and power.

Abstract: A distributed Bragg reflector (DBR) includes a base substrate and a gain medium formed on the base substrate. A waveguide positioned above the base substrate in optical communication with the gain medium and defines a gap extending between the base substrate and the waveguide along a substantial portion of the length thereof. The waveguide may have a grating formed therein. A heating element is in thermal contact with the waveguide and electrically coupled to a controller configured to adjust optical properties of the waveguide by controlling power supplied to the heating element.

Abstract: A distributed Bragg reflector (DBR) includes a base substrate and a gain medium formed on the base substrate. A waveguide positioned above the base substrate in optical communication with the gain medium and defines a gap extending between the base substrate and the waveguide along a substantial portion of the length thereof. The waveguide having a grating formed therein. A heating element is in thermal contact with the waveguide and electrically coupled to a controller electrically configured to adjust optical properties of the waveguide by controlling power supplied to the heating element.

Abstract: An optical transmitter is disclosed wherein a modulating signal, such as an NRZ signal, encoding data is combined with a time derivative of the modulating signal and coupled to a directly modulated laser in order to generate artificial transient chirp in the output of the laser effective to substantially compensate for dispersion experienced by the output of the laser traveling through a dispersive medium such as an optical fiber. In some embodiments, the time derivative is added to the modulating signal only at the falling edges of the modulating signal.