High speed swept frequency spectroscopic system

Details High speed swept frequency spectroscopic system High speed swept frequency spectroscopic system

2007-02-27

2007-02-27

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C372S021000

Reexamination Certificate

active

10637472

ABSTRACT:
A high scan rate spectroscopic system converts a narrow-band laser pulse into a multispectral pulse, using, for example, a nonlinear fiber. The multispectral pulse is then converted to a swept frequency pulse through a second fiber impressing a frequency-dependent delay in the light beam which is then applied to the object to be tested.

REFERENCES:
patent: 5144374 (1992-09-01), Grego
patent: 2002/0067747 (2002-06-01), Jalali et al.
Tong, Y.C., Chan, L.Y., Tsang, H.K., Fiber Dispersion of Pulse Spectrum Measurement Using a Sampling Oscilloscope, Elect. Lett. 33, 983, (1997).
Whitten, William B., Time of Flight Optical Spectrometry with Fiber Optic Waveguides, Anal. Chem. 1982, 54, 1026-1028.
Nishizawa, Norihiko, Goto, Toshio, Widely Broadened Super Continuum Generation Using Highly Nonlinear Dispersion Shifted Fibers and Femtosecond Fiber Laser, Jpn. J. Appl. Phys. vol. 40 (2001) pp. L365-L367, Part 2, No. 4B, Apr. 15, 2001.
P.V. Kelkar, et al., Time-domain optical sensing, Electonic Letters, Sep. 16, 1999, vol. 35, No. 19, pp. 1661-1662.

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