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US 2020/0371403 A1Published application
Systems, methods, and structures for improved supercontinuum generation
AssigneeUniversiteit Twente
InventorsHaider ZIA, Klaus-Jochen BOLLER
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Abstract
Aspects of the present disclosure describe improved supercontinuum generation based upon alternating optical dispersion along a waveguide length that advantageously generates much more spectral bandwidth than possible with conventional, prior art techniques without losing coherence as well as supporting a larger range of pulse energies (i.e., for lower than conventionally allowed pulse energies or high pulse energies).
Claims24
A system for supercontinuum generation, the system comprising:
- a source that generates pump pulses of electromagnetic radiation, wherein the pulses are characterized by a first spectral bandwidth;
- and
- a waveguide structure that receives the pump pulses and generates output pulses characterized by a second spectral bandwidth that is greater than the first spectral bandwidth;
- CHARACTERIZED BY;
- the waveguide structure comprising alternating segments of normal dispersion (ND) waveguide segments and anomalous dispersion (AD) waveguide segments along a length of the waveguide structure.
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A system for supercontinuum generation comprising:
- an optical source in optical communication with a waveguide structure;
- and
- the waveguide structure including alternating segments of normal dispersion (ND) waveguide and anomalous dispersion (AD) waveguide along a length of the waveguide structure, said waveguide structure configured to alternate the sign of a dispersion profile along the length of the waveguide;
- such that light pulses emitted from the optical source undergo a spectral broadening as it propagates the length of the waveguide structure.
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A method of supercontinuum generation comprising:
- directing a light pulse into an optical waveguide structure;
- spectrally broadening and reshaping the light pulse by repeatedly alternating the sign of the dispersion spectrum along a propagation coordinate of the waveguide structure, said waveguide structure including alternating segments of normal dispersion (ND) waveguide and anomalous dispersion (AD) waveguide along a length of the waveguide structure;
- emitting spectrally broadened light pulses from the waveguide structure.
Dependencies are inferred from the claim text.