Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Reexamination Certificate
2007-01-02
2007-01-02
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
C356S318000, C250S458100
Reexamination Certificate
active
10764319
ABSTRACT:
A multi-channel, reconfigurable fiber-coupled Raman instrument uses fiber optic switches for laser and calibration light routing to facilitate automated calibration, diagnosis and operational safety. The system allows wavelength axis calibration on all channels; laser wavelength calibration (including multiple and/or backup laser options); fiber coupling optimization; fault detection/diagnosis; and CCD camera binning setup. In the preferred embodiment, dedicated calibration channels surround data channels on a 2-dimensional CCD dispersed slit image implemented using a unique cabling architecture. This “over/under” calibration interpolation approach facilitates quasi-simultaneous or sequential calibration/data acquisitions. CCD binning between sequential calibration and data acquisitions enables higher density multi-channel operation with tilted images based upon a multiplexed grating configuration. A diamond sample is used as a Raman shift reference for laser calibration, preferably in the form of a small disc sampled with an edge-illuminating probe using two unfiltered fibers.
REFERENCES:
patent: 5377004 (1994-12-01), Owen et al.
patent: 5542439 (1996-08-01), Gueret
patent: 5559557 (1996-09-01), Kato
patent: 5862273 (1999-01-01), Pelletier
patent: 5943128 (1999-08-01), Slater
patent: 5963319 (1999-10-01), Jarvis et al.
patent: 5974211 (1999-10-01), Slater
patent: 6038363 (2000-03-01), Slater et al.
patent: 6259517 (2001-07-01), Tedesco et al.
patent: 6351306 (2002-02-01), Tedesco et al.
patent: 6603545 (2003-08-01), Slater
Baughn John W.
Davis Kevin L.
Fairchild Ronald C.
Slater Joseph B.
Tedesco James M.
Evans F. L.
Gifford Krass Groh Sprinkle Anderson & Citkowski PC
Kaiser Optical Systems
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