Laser module with beam rotator

A laser module comprising:

• a laser submodule attached to an internal surface of a floor of the laser module;
• a polarization beam combiner (PBC) attached to the internal surface of the floor;
• a beam rotator attached to the internal surface of the floor;
• a grating attached to the internal surface of the floor;
• and
• an output fiber attached to the internal surface of the floor, wherein:
• the laser submodule includes a plurality of laser diodes arranged in a row-and-column formation,
• a row in the row-and-column formation includes a first laser diode of the plurality of laser diodes and a second laser diode of the plurality of laser diodes,
• a column in the row-and-column formation includes the first laser diode and a third laser diode of the plurality of laser diodes,
• the first laser diode is configured to emit a first beam associated with a first wavelength and a first polarization,
• the second laser diode is configured to emit a second beam associated with the first wavelength and a second polarization different than the first polarization,
• the third laser diode is configured to emit a third beam associated with a second wavelength, different than the first wavelength, and the first polarization,
• the laser submodule is configured to emit an array pattern of beams having different polarizations to the PBC,
• the PBC is configured to combine the array pattern of beams into a vertical stack pattern of beams,
• the beam rotator is configured to rotate the vertical stack pattern of beams into a horizontal stack pattern of beams,
• the grating is configured to combine the horizontal stack pattern of beams into an overlapped pattern of beams and to direct the overlapped pattern of beams to the output fiber, and
• the output fiber is configured to emit the overlapped pattern of beams from the laser module and to a target, and
• the vertical stack pattern of beams, the horizontal stack pattern of beams, and the overlapped pattern of beams are to transmit through the laser module parallel to the internal surface of the floor of the laser module.

A laser module comprising:

• a laser submodule attached to an internal surface of a floor of the laser module;
• a polarization beam combiner (PBC) attached to the internal surface of a floor of the laser module;
• a beam rotator attached to the internal surface of the floor;
• and
• a grating attached to the internal surface of the floor, wherein:
• the laser submodule includes a plurality of laser diodes arranged in a row-and-column formation,
• a row in the row-and-column formation includes a first laser diode of the plurality of laser diodes and a second laser diode of the plurality of laser diodes,
• a column in the row-and-column formation includes the first laser diode and a third laser diode of the plurality of laser diodes,
• the first laser diode is configured to emit a first beam associated with a first wavelength and a first polarization,
• the second laser diode is configured to emit a second beam associated with the first wavelength and a second polarization different than the first polarization,
• the third laser diode is configured to emit a third beam associated with a second wavelength, different than the first wavelength, and the first polarization,
• the laser submodule is configured to emit an array pattern of beams having different polarizations to the PBC,
• the PBC is configured to combine the array pattern of beams into a vertical stack pattern of beams,
• the beam rotator is configured to rotate the vertical stack pattern of beams into a horizontal stack pattern of beams,
• the grating is configured to combine the horizontal stack pattern of beams into an overlapped pattern of beams and to direct the overlapped pattern of beams to an output fiber of the laser submodule, and
• the vertical stack pattern of beams, the horizontal stack pattern of beams, and the overlapped pattern of beams are to transmit through the laser module parallel to the internal surface of the floor of the laser module.