Method and system for stable and tunable high power pulsed laser system
First Claim
1. A method for providing a plurality of signal pulses, the method comprising:
- providing a stabilizing optical radiation signal characterized by a first center wavelength, a first spectral linewidth, and an ooutput power;
coupling the optical radiation signal into a first port of an optical combiner;
transmitting the optical radiation signal from the first port to a second port of the optical combiner;
coupling the optical radiation signal from the second port into a tunable pulsed laser source comprising a semiconductor laser;
driving the tunable pulsed laser with drive signal to produce a plurality of signal pulses having temporal pulse shape, and including applying the drive signal to the semiconductor laser to adjust the temporal pulse shape in real time from pulse to pulse;
injection locking the laser to stabilize the spectral linewidth of the plurality of signal pulses;
coupling the plurality of signal pulses into the second port;
transmitting the plurality of signal pulses from the second port to a third port of the optical combiner; and
outputting the plurality of signal pulses from the third port;
coupling the plurality of signal pulses into an input end of an optical amplifier;
amplifying the plurality of signal pulses; and
outputting the plurality of amplified signal pulses at an output end of the optical amplifier.
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Abstract
A laser system includes an injection laser source having an output and operable to provide a laser output characterized by a first wavelength, a first linewidth, an output power. The laser system also includes a tunable pulsed source characterized by a gain bandwidth. The tunable pulsed source is operable to provide an output signal having an average power. The output signal includes a plurality of optical pulses. Each of the plurality of optical pulses is characterized by a second wavelength, a second linewidth, and a peak power. The laser system further includes an optical combiner having a first port coupled to the output of the injection laser source, a second port coupled to the tunable pulsed source, and a third port.
38 Citations
20 Claims
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1. A method for providing a plurality of signal pulses, the method comprising:
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providing a stabilizing optical radiation signal characterized by a first center wavelength, a first spectral linewidth, and an ooutput power; coupling the optical radiation signal into a first port of an optical combiner; transmitting the optical radiation signal from the first port to a second port of the optical combiner; coupling the optical radiation signal from the second port into a tunable pulsed laser source comprising a semiconductor laser; driving the tunable pulsed laser with drive signal to produce a plurality of signal pulses having temporal pulse shape, and including applying the drive signal to the semiconductor laser to adjust the temporal pulse shape in real time from pulse to pulse; injection locking the laser to stabilize the spectral linewidth of the plurality of signal pulses; coupling the plurality of signal pulses into the second port; transmitting the plurality of signal pulses from the second port to a third port of the optical combiner; and outputting the plurality of signal pulses from the third port; coupling the plurality of signal pulses into an input end of an optical amplifier; amplifying the plurality of signal pulses; and outputting the plurality of amplified signal pulses at an output end of the optical amplifier. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A laser system comprising:
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an injection laser source having an output and operable to provide a laser output characterized by a first wavelength, a first linewigth, an output power; a tunable pulsed source, comprising a semiconductor laser, characterized by gain bandwidth, the tunable source being operable to provide an output signal having an average power, the output signal comprising a plurality of optical pulses, each of the plurality of optical pulses being characterized by second wavelength, a second linewidth, and a peak power; and an optical combiner having a first port couples to the output of the injection laser source, a second port coupled to the tunable pulsed source from which the tunable pulsed source receives the laser output of the injection laser source, and a third port; and a controller connected with the tunable pulsed source which applies drive signal to the semiconductor laser to control temporal pulse shape of pulses in the plurality of optical pulses, and is configured to change the drive signal to the semiconductor laser to adjust the temporal pulse shapes in the plurality of optical pulses in real time, and wherein the second linewidth is stabilized by laser output of the injection laser source. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification