Optics: measuring and testing – For light transmission or absorption
Reexamination Certificate
2007-06-12
2007-06-12
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
For light transmission or absorption
Reexamination Certificate
active
11018687
ABSTRACT:
A semiconductor source spectroscopy system controls optical power variation of the tunable signal due to polarization dependent loss in the system and thus improves the noise performance of the system. It relies on using polarization control between the source and the sample and/or the sample and the detector. In one example, the source has a semiconductor optical amplifier and an intracavity tunable element for generating a tunable optical signal for illuminating a sample. The tunable optical signal is spectrally tuned over a scan band of the spectroscopy system by operation of the intracavity tunable element.
REFERENCES:
patent: 3991383 (1976-11-01), Hughes
patent: 6040914 (2000-03-01), Bortz et al.
patent: 6212033 (2001-04-01), Sasaki
patent: 6339603 (2002-01-01), Flanders et al.
patent: 2001/0052979 (2001-12-01), Treado et al.
patent: 2003/0007523 (2003-01-01), Chapman et al.
patent: 2004/0246490 (2004-12-01), Wang
patent: 2006/0152729 (2006-07-01), Drennen et al.
patent: 1 345 294 (2003-09-01), None
Ranaswamy et al. (“Single-Polarization Optical Fibers: Exposed Cladding Technique” by V. Ranaswamy, I. P. Kaminow and P. Kaiser in Applied Physics Letters, vol. 33, p. 814 (1978).
U.S. Appl. No. 10/688,690, filed Oct. 17, 2003, Atia et al.
U.S. Appl. No. 10/953,043, filed Sep. 29, 2004, Flanders et al.
Atia Walid A.
Flanders Dale C.
Kuznetsov Mark E.
Axsun Technologies, Inc.
Houston Eliseeva LLP
Skovholt Jonathan
Toatley , Jr. Gregory J.
LandOfFree
Polarization controlling fiber probe for semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polarization controlling fiber probe for semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization controlling fiber probe for semiconductor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3834912