Optical: systems and elements – Optical amplifier – Multiple pass
Reexamination Certificate
2008-07-01
2008-07-01
Keith, Jack W. (Department: 3663)
Optical: systems and elements
Optical amplifier
Multiple pass
C359S341100
Reexamination Certificate
active
07394591
ABSTRACT:
An optimized Yb: doped fiber mode-locked oscillator and fiber amplifier system for seeding Nd: or Yb: doped regenerative amplifiers. The pulses are generated in the Yb: or Nd: doped fiber mode-locked oscillator, and may undergo spectral narrowing or broadening, wavelength converting, temporal pulse compression or stretching, pulse attenuation and/or lowering the repetition rate of the pulse train. The conditioned pulses are subsequently coupled into an Yb: or Nd: fiber amplifier. The amplified pulses are stretched before amplification in the regenerative amplifier that is based on an Nd: or Yb: doped solid-state laser material, and then recompressed for output.
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Cho Gyu C.
Fermann Martin E.
Harter Donald J.
Hartl Ingmar
Bolda Eric
Imra America Inc.
Keith Jack W.
Sughrue & Mion, PLLC
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