CONTROL SYSTEM USING A PHASE MODULATION CAPABLE ACOUSTO-OPTIC MODULATOR FOR DIVERTING LASER OUTPUT INTENSITY NOISE TO A FIRST ORDER LASER LIGHT BEAM AND RELATED METHODS
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United States of America Patent
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app pub date -
Nov 3, 2016
filing date -
Nov 3, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A laser system may include a laser source configured to generate a laser light beam and an acousto-optic modulator (AOM). The AOM may include an acousto-optic medium configured to receive the laser light beam, and a phased array transducer comprising a plurality of electrodes coupled to the acousto-optic medium and configured to cause the acousto-optic medium to output a zero order laser light beam and a first order diffracted laser light beam. The system may further include a beamsplitter downstream from the AOM and configured to split a sampled laser light beam from the zero order laser light beam, a photodetector configured to receive the sampled laser light beam and generate a feedback signal associated therewith, and a radio frequency (RF) driver configured to generate an RF drive signal to the phased array transducer electrodes so that noise is diverted to the first order diffracted laser light beam based upon the feedback signal.
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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- G21K:TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNET....
- B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- H01S:DEVICES USING STIMULATED EMISSION
- G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
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