Method and system for generation of optical pulses of light
AssigneeVALO Innovations GmbH
InventorsAlexander Pape, Oliver Prochnow
Life of this patent
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Abstract
A laser system for the generation of ultrashort optical pulses of light including an oscillator emitting low power and negatively chirped optical pulses with a spectral bandwidth W1, a dispersive connecting segment to maintain the sign of the chirp of the pulses of the oscillator, an optical amplifier for amplifying the optical light pulses and a negative group velocity dispersion segment for compensating phase contributions of the whole propagation process. During the propagation from the output of the oscillator to the end of the optical amplifier, the chirp of the light pulses will change once from negative to positive chirp. After a final compression stage ultrashort optical pulses can be generated.
Claims20
A laser system comprising:
- an oscillator producing a plurality of negatively chirped optical pulses having a first spectral width W1;
- an amplifier for receiving the plurality of optical pulses and amplifying the plurality of optical pulses to produce at an output of the amplifier an optical light pulse having a second spectral width W2;
- and
- a positive group velocity dispersion connecting segment connected directly between the oscillator and an input of the amplifier, wherein the connecting segment is adapted to maintain the sign of the chirp of the plurality of optical pulses;
- and wherein the sign of the chirp is changed between the oscillator and the output of the amplifier.
A laser system comprising:
- an oscillator producing a plurality of negatively chirped optical pulses having a first spectral width W1;
- an amplifier for receiving the plurality of optical pulses and amplifying the plurality of optical pulses to produce at an output of the amplifier an optical light pulse having a second spectral width W2;
- a positive group velocity dispersion connecting segment connected directly between the oscillator and an input of the amplifier, wherein the connecting segment is adapted to maintain the sign of the chirp of the plurality of optical pulses;
- and wherein the sign of the chirp is changed between the oscillator and the output of the amplifier;
- and
- a second segment of positive group velocity dispersion segment (β2) connected to an output of the amplifier.
A laser system comprising:
- an oscillator producing a plurality of negatively chirped optical pulses having a first spectral width W1;
- an amplifier for receiving the plurality of optical pulses and amplifying the plurality of optical pulses to produce at an output of the amplifier an optical light pulse having a second spectral width W2;
- and
- a positive group velocity dispersion connecting segment connected directly between the oscillator and an input of the amplifier, wherein the connecting segment is adapted to maintain the sign of the chirp of the plurality of optical pulses;
- and wherein the sign of the chirp is changed between the oscillator and the output of the amplifier;
- wherein at an output of the laser system a third spectral width is generated, in use, by shifting the chirp-free point to the end of the amplifier.
Dependencies are inferred from the claim text.