Wavelength combined laser system

摘要

A beam combiner may include source elements, each configured to output a beam of light locked at a center wavelength different from center wavelengths of other source elements. The beam combiner may include a dispersive element configured to combine the beams of light into a combined beam, and a beam separator configured to separate the combined beam into an output beam and a locking beam. The beam combiner may include a spatial filter configured to prevent crosstalk within the locking beam, and to redirect the locking beam to the source elements. The dispersive element may be configured to disperse the locking beam into constituent wavelength beams. Each constituent wavelength beam may be directed to a respective one of the source elements for locking that source element at its center wavelength, and may correspond in wavelength to the center wavelength of the respective source element.

主权项

1. A beam combiner, comprising:
an array of source elements,
each source element, of the array of source elements, being configured to output a beam of light locked at a center wavelength different from center wavelengths of other source elements of the array of source elements; a dispersive element configured to combine the beams of light into a combined beam; a beam separator configured to separate the combined beam into an output beam and a locking beam,
the locking beam comprising a smaller portion of the combined beam than the output beam,
the smaller portion including a portion of the beam of light of each source element; a spatial filter configured to prevent crosstalk within the locking beam, and to redirect the locking beam back to the array of source elements; and the dispersive element configured to disperse the locking beam into constituent wavelength beams,
each constituent wavelength beam being directed to a respective one of the array of source elements for locking that source element at its center wavelength, andeach constituent wavelength beam corresponding in wavelength to the center wavelength of the respective source element.