Tunable terahertz burst mode for pulsed laser

A tunable pulsed burst mode laser, comprising:

• a beam splitting optical element;
• a plurality of optical path difference (OPD) tuning elements;
• and
• a beam combining optical element, wherein:
• the beam splitting optical element is configured to split an input beam into a plurality of beams that are to propagate from the beam splitting optical element to the beam combining optical element via a plurality of optical paths,
• the plurality of OPD tuning elements are respectively disposed on the plurality of optical paths, and
• the beam combining optical element is configured to combine the plurality of beams into an output beam that comprises a pulsed beam that includes a plurality of beamlets that are respectively from the plurality of beams, and
• wherein the plurality of beamlets are provided in a burst, and
• wherein an amount time between consecutive beamlets within the burst is less than or equal to 1 picosecond (ps).

A tunable pulsed burst mode laser, comprising:

• a beam splitting optical element;
• a plurality of optical path difference (OPD) tuning elements;
• and
• a beam combining optical element, wherein:
• the beam splitting optical element is configured to split an input beam into a plurality of beams,
• the plurality of OPD tuning elements are respectively disposed on a plurality of optical paths of the plurality of beams, and
• the beam combining optical element is configured to combine the plurality of beams into an output beam that comprises a pulsed beam that includes a plurality of beamlets, and
• wherein the plurality of beamlets are provided in a tunable terahertz (THz) burst.