Optical: systems and elements – Optical amplifier
Reexamination Certificate
2007-03-29
2009-02-03
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
C359S337500, C359S341500, C398S199000
Reexamination Certificate
active
07486436
ABSTRACT:
An all-fiber chirped pulse amplification (CPA) system and method is provided that utilizes a hollow core photonic bandgap fiber as a pulse compressor and a dispersion compensating optical fiber as a pulse stretcher that are matched with respect to both the amount and slope of dispersion to avoid peak power-limiting pulse distortion. The CPA system includes a rare earth ion-doped optical fiber amplifier having an input and an output that amplifies optical pulses having a center wavelength of λc, a pulse compressing length L1 of hollow core photonic bandgap fiber having a dispersion value D1 and a dispersion slope S1 that varies over a wavelength λ of the pulses that is optically connected to the output of the fiber amplifier and having a k-parameter defined by a ratio of D1 over the slope of the function D1(λ) that is larger than about 50, and a pulse stretching length L2 of dispersion compensating optical fiber connected to the input of the fiber amplifier having a dispersion value D2 and dispersion slope S2. The lengths are selected such that L1D1=−L2D2, and the center wavelength λc of the inputted optical pulses is preferably close to the center wavelength of the bandgap of the photonic bandgap fiber.
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“Generation of Megawatt Optical Solitons in Hollow-Core Photonic Band-Gap Fibers”; D.G. Ouzounov, F.R. Ahmad, D. Muller, N. Venkataraman, M.T. Gallagher, M.G. Thomas, J. Silcox, K.W. Koch and A.L. Gaeta; Science, 301, 1702-1704, Sep. 2003.
Kuksenkov Dmitri Vladislavovich
Li Shenping
Bolda Eric
Corning Incorporated
Short Svetlana Z.
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