Optics: measuring and testing – For light transmission or absorption
Reexamination Certificate
2008-05-20
2008-05-20
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
For light transmission or absorption
Reexamination Certificate
active
07375812
ABSTRACT:
A spectroscopy system comprises a tunable semiconductor laser, such as an external cavity laser, that generates a tunable signal. A detector is provided for detecting the tunable signal after interaction with a sample. In this way, the system is able to determine the spectroscopic response of the sample by tuning the laser of the scan band and monitoring the detector's response. An integrating device, such as an integrating sphere, is interposed optically between the tunable semiconductor laser and the detector. This integrating device is used to mitigate the effects of parasitic spectral noise, such as noise that is generated by speckle or the combination of single-and multi-mode optical fibers in the transmission link between the tunable semiconductor laser and the detector.
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Pay attention to the date code embedded in the archived url. This is the list of numbers in the middle; it translates as yyyymmddhhmmss. For example in the url http://web.archive.org/web/20000229123340/http://www.yahoo.com/the date the site was crawled was Feb. 29, 2000 at 12:33 and 40 seconds.
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Atia Walid A.
Flanders Dale C.
Axsun Technologies, Inc.
Chowdhury Tarifur
Cook Jonathon D
Houston Eliseeva LLP
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