White optical pulse source and applications

Details White optical pulse source and applications White optical pulse source and applications

1998-06-16

1999-12-07

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 64, 372 18, 372 26, 372 20, 372 27, 372 29, 372 3, 372 6, 372703, H01S 310

Patent

active

059995483

ABSTRACT:
The present invention relates to a white pulse source that produces spectrally shaped white pulses of a constant optical output power over a wide wavelength range. The white pulse source includes a pump pulse source for generating pump pulses with a center wavelength .lambda.0 and a waveguided nonlinear optical medium with a length L. The waveguided nonlinear optical medium is characterized by two properties: the first property is that chromatic dispersion D(.lambda.0,z) at the center wavelength of pump pulses in ps
m/km is positive at an input end of said waveguided nonlinear optical medium, where z=0, and decreases towards an output end. The second property is that said chromatic dispersion D(.lambda., z) has a maximum value D(.lambda.p(z), z) at a peak wavelength .lambda.p(z) within a range of propagation distance given by L1.ltoreq.z.ltoreq.L where 0.ltoreq.L1<L, and that said chromatic dispersion D(.lambda., z) has two zero-dispersion wavelengths, .lambda.1(z) and .lambda.2(z), where D(.lambda.1(z), z)=D(.lambda.2(z), z)=0 ps
m/km, within a range of propagation distance z where D(.lambda.p(z), z) shows a positive value.

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