Optics: measuring and testing – For light transmission or absorption
Reexamination Certificate
2006-07-18
2006-07-18
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
For light transmission or absorption
C356S445000
Reexamination Certificate
active
07079249
ABSTRACT:
A modulated reflectance measurement system includes two diode-based lasers for generating a probe beam and an intensity modulated pump beam. The pump and probe beams are joined into a collinear beam using a laser diode power combiner. One or more optical fibers are used to transport the beams either before and/or after they are combined. The collinear beam is focused through one or more lenses or other optical components for collimation. The collinear beam is then focused by an objective lens onto a sample. Reflected energy returns through an objective and is redirected by a beam splitter to a detector. A lock-in amplifier converts the output of the detector to produce quadrature (Q) and in-phase (I) signals for analysis. A processor uses the Q and/or I signals to analyze the sample.
REFERENCES:
patent: 4999014 (1991-03-01), Gold et al.
patent: 5042951 (1991-08-01), Gold et al.
patent: 5111326 (1992-05-01), Ball
patent: 5166752 (1992-11-01), Spanier et al.
patent: 5329357 (1994-07-01), Bernoux et al.
patent: 5502567 (1996-03-01), Pokrowsky et al.
patent: 5608526 (1997-03-01), Piwonka-Corle et al.
patent: 5610712 (1997-03-01), Schmitz et al.
patent: 5706094 (1998-01-01), Maris
patent: 5822067 (1998-10-01), Yanik
patent: 5999544 (1999-12-01), Petersen
patent: 6489801 (2002-12-01), Borden et al.
patent: 6504618 (2003-01-01), Morath et al.
patent: 6563591 (2003-05-01), Maris
patent: 6958814 (2005-10-01), Borden et al.
patent: 2003/0076497 (2003-04-01), Wolf et al.
patent: 0 397 388 (1990-05-01), None
patent: 0 632 256 (1993-06-01), None
patent: WO 96/29583 (1996-09-01), None
patent: WO 97/37265 (1997-10-01), None
patent: WO 01/55671 (2001-08-01), None
D.G. Baker, “Monomode Fiber-Optic Design with Local-Area and Long-Haul Network Applications,” published by Van Nostrand Reinhold Company, New York, 1978, p. 128.
M. Young, “Optics and Lasers Including Fibers and Optical Waveguides,” Fourth Revised Edition, published by Springer-Verlag, New York, 1993, pp. 260-261.
Fanton Jeffrey T.
Nicolaides Lena
Salnik Alex
Lauchman Layla G.
Stallman & Pollock LLP
Therma-Wave, Inc.
LandOfFree
Modulated reflectance measurement system with fiber laser... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modulated reflectance measurement system with fiber laser..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulated reflectance measurement system with fiber laser... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3537213