Back to results
US 4,306,195 AGranted
Pulse compressor with saturation-matched focusing geometry
AssigneeNorthrop Corporation
InventorEddy A. Stappaerts
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNorthrop Corporation
InventorEddy A. Stappaerts
Estimating the term…
A backward-wave Raman amplifier or pulse compressor for compressing laser pulses. A laser pulse, or pump beam, of relatively long duration enters one end of the compressor. A short, initiating Stokes-Raman pulse enters the other end of the compressor and absorbs energy from the pump beam as the Stokes-Raman pulse traverses the compressor. The cross-sectional area of the Stokes-Raman pulse within the compressor increases linearly with distance traversed through the compressor so that the energy density within the pulse remains substantially constant as the pulse traverses the compressor and receives energy from the pump beam which traverses the compressor in the opposite direction. The cross section of the pump beam also varies linearly with distance within the compressor so as to coincide substantially with the cross section of the Stokes-Raman pulse and thus achieve efficient compression.
In a backward Raman pulse compressor for transferring pump energy traveling in one direction through the compressor into energy contained in a Stokes-Raman pulse traveling in the opposite direction through the compressor, said backward Raman compressor having a first end for receiving pump energy and having a second end for receiving an initiating Stokes-Raman pulse:
In a backward Raman pulse compressor for transferring pump energy traveling in one direction through the compressor into energy contained in a Stokes-Raman pulse traveling in the opposite direction through the compressor, said backward Raman compressor having a first end for receiving pump energy and a second end for receiving an initiating Stokes-Raman pulse:
Dependencies are inferred from the claim text.