Laser system
AssigneeElectronics and Telecommunications Research Institute
InventorsDong Hoon Song, Mun Youn Jung
Life of this patent
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Abstract
Provided is a laser system. The laser system includes: a laser device providing a laser pulse; a pulse compressor decreasing a pulse width of the laser pulse; a pulse stretcher disposed between the compressor and the laser device and dispersing the laser pulse; and a filament portion disposed between the pulse stretcher and the pulse compressor, wherein the filament portion transmits the laser pulse to expand a spectrum of the laser pulse by using self focusing and a filament phenomenon of the laser pulse.
Claims18
A laser system comprising:
- a laser device providing a laser pulse;
- a pulse compressor;
- a pulse stretcher disposed between the pulse compressor and the laser device and dispersing the laser pulse provided by the laser device;
- and
- a filament portion disposed between the pulse stretcher and the pulse compressor,
- wherein the filament portion expands a spectrum of the laser pulse dispersed by the pulse stretcher by using self-focusing and a filament phenomenon of the dispersed laser pulse, the filament portion comprises N-SF11.
A laser system comprising:
- a laser device providing a laser pulse;
- a pulse compressor;
- a pulse stretcher disposed between the pulse compressor and the laser device and dispersing the laser pulse provided by the laser device;
- and
- a filament portion disposed between the pulse stretcher and the pulse compressor,
- wherein the filament portion expands a spectrum of the laser pulse dispersed by the pulse stretcher by using self-focusing and a filament phenomenon of the dispersed laser pulse,
- wherein the pulse stretcher and the pulse compressor comprise a grism stretcher and a grism compressor, respectively, and
- wherein the grism stretcher comprises:
- a first half mirror transmitting the laser pulse provided by the laser device;
- a first grism refracting the laser pulse transmitted through the first half mirror;
- a second grism diagonally facing the first grism, the second grism refracting the laser pulse refracted by the first grism to output a laser pulse with a negative dispersion;
- and
- a first mirror reflecting the laser pulse refracted by the second grism back to the second grism.
A laser system comprising:
- a laser device providing a laser pulse;
- a pulse compressor;
- a pulse stretcher disposed between the pulse compressor and the laser device and dispersing the laser pulse provided by the laser device;
- and
- a filament portion disposed between the pulse stretcher and the pulse compressor,
- wherein the filament portion expands a spectrum of the laser pulse dispersed by the pulse stretcher by using self-focusing and a filament phenomenon of the dispersed laser pulse,
- wherein the pulse stretcher and the pulse compressor comprise a grism stretcher and a grism compressor, respectively, and
- wherein the grism compressor comprises:
- a first half mirror transmitting the laser pulse transmitted through the filament portion;
- a first grism refracting the laser pulse transmitted through the first half mirror;
- a second grism diagonally facing the first grism, the second grism refracting the laser pulse refracted by the first grism to decrease a pulse width of the laser pulse refracted by the first grism;
- and
- a first mirror reflecting the laser pulse refracted by the second grism back to the second grism.
Dependencies are inferred from the claim text.