Apparatus and Method For Tunable Frequency Parametric Down-Conversion Of High Peak Power Lasers Through Dual Chirp Pulse Mixing
First Claim
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1. A method for selectively producing a short high-energy laser pulse having a predetermined wavelength and a predetermined chirp, comprising:
- directing an initial laser pulse into a splitter, which splits off a portion of energy from the initial pulse to form a first signal pulse, the remaining energy from the initial laser pulse forming a pump pulse;
inputting the first signal pulse into a tunable pulse stretcher, the tunable pulse stretcher controllably converting the first signal pulse into a second signal pulse having a predetermined wavelength and a predetermined positive or negative chirp;
inputting the second signal pulse and the pump pulse into a pulse amplifier, the pulse amplifier combining the second signal pulse and the pump pulse into a single amplified pulse;
inputting the amplified pulse into a tunable pulse compressor, the tunable pulse compressor controllably converting the amplified pulse into a high energy output signal pulse having a predetermined wavelength and a predetermined positive chirp.
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Abstract
A laser architecture for selectively producing short high-energy laser pulses having octave-spanning, continuous tunability. Two oppositely chirped pulses are used in combination with a pair of tunable pulse stretcher/compressors to produce a short, high-energy, tunable, broadband pulse.
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Citations
1 Claim
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1. A method for selectively producing a short high-energy laser pulse having a predetermined wavelength and a predetermined chirp, comprising:
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directing an initial laser pulse into a splitter, which splits off a portion of energy from the initial pulse to form a first signal pulse, the remaining energy from the initial laser pulse forming a pump pulse; inputting the first signal pulse into a tunable pulse stretcher, the tunable pulse stretcher controllably converting the first signal pulse into a second signal pulse having a predetermined wavelength and a predetermined positive or negative chirp; inputting the second signal pulse and the pump pulse into a pulse amplifier, the pulse amplifier combining the second signal pulse and the pump pulse into a single amplified pulse; inputting the amplified pulse into a tunable pulse compressor, the tunable pulse compressor controllably converting the amplified pulse into a high energy output signal pulse having a predetermined wavelength and a predetermined positive chirp.
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Specification