Optics: measuring and testing – By polarized light examination
Reexamination Certificate
2005-09-06
2005-09-06
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By polarized light examination
C398S065000, C398S152000, C359S483010, C702S106000
Reexamination Certificate
active
06940594
ABSTRACT:
Method and apparatus for determining scattering parameters of a scattering matrix of an optical device. A method according to the present invention comprises applying an optical stimulus to a plurality of ports of the optical device, measuring optical fields emerging from the plurality of ports in amplitude and phase, and calculating the scattering parameters using the measured optical fields. The applying step includes applying the optical stimulus to the plurality of ports simultaneously. The method ensures a consistent phase reference for measurement of all of the scattering parameters so that all measurable characteristics of the device can be calculated directly from the scattering parameters.
REFERENCES:
patent: 5293210 (1994-03-01), Berndt
patent: 6301037 (2001-10-01), Fischer et al.
Walker, N.C.; Carroll, J.E., Simultaneous Phase and Amplitude Measurements on Optical Signals Using a Multiport Juction, Electronics Letters, Nov. 8, 1984, vol. 20, No. 23, p. 981-983.
Baney Douglas Michael
Tucker Rodney S.
Agilent Technologie,s Inc.
Punnoose Roy M.
Toatley , Jr. Gregory J.
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