Patent ID: 11881681
Assignee: IMRA AMERICA, INC.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. A pulse transformer for modifying the amplitude and phase of short optical pulses, the pulse transformer comprising:
a pulse source;
a stretcher comprising at least one first fiber Bragg grating (FBG) configured to receive input pulses from the pulse source, the stretcher having a first second-order dispersion parameter (D21);
at least one optical amplifier configured to receive pulses from the at least one first FBG;
a compressor comprising at least one second FBG configured to receive pulses from the at least one optical amplifier, the compressor having a second second-order dispersion parameter (−D22), an absolute value of the first second-order dispersion parameter (|D21|) and an absolute value of the second second-order dispersion parameter (|−D22|) substantially equal to one another to within 10%, at least one of the stretcher and the compressor configured to be adaptively controlled;
a bandwidth broadening nonlinear element configured to receive pulses from the compressor; and
a dispersive element configured to compress pulses received from the nonlinear element to produce output pulses with a reduced pulse curvature compared to the input pulses.