Broadband wavelength selective filter

Details Broadband wavelength selective filter Broadband wavelength selective filter

2007-12-04

2007-12-04

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C356S328000

Reexamination Certificate

active

11096448

ABSTRACT:
An optical filter for the selective attenuation of specific wavelengths of light includes at least one spectrally dispersive element, such as a diffraction grating or prism, in combination with an optical filter. A dispersive element separates broadband light into a constituent wavelength spread in angle space. An optical filter, or filter array, can block and/or attenuate specific wavelengths or wavelength ranges of interest while the light is angularly dispersed. A second dispersive element can recombine this filtered, separated wavelength fan of light into a coaxial broadband beam having a smoother intensity profile than the unfiltered beam.

REFERENCES:
patent: 4856897 (1989-08-01), Fateley et al.
patent: 5607800 (1997-03-01), Ziger
patent: 5631735 (1997-05-01), Nagai
patent: 5739909 (1998-04-01), Blayo et al.
patent: 5867276 (1999-02-01), McNeil et al.
patent: 5889593 (1999-03-01), Bareket
patent: 5963329 (1999-10-01), Conrad et al.
patent: 6181474 (2001-01-01), Ouderkirk et al.
patent: 6429943 (2002-08-01), Opsal et al.
patent: 2002/0109841 (2002-08-01), Gould et al.
patent: 2004/0065845 (2004-04-01), Seyfried
patent: 2004/0145735 (2004-07-01), Silberberg et al.
patent: 2005/0036202 (2005-02-01), Cohen et al.
patent: 2 191 855 (1987-12-01), None
A.C. Akcay et al., “Spectral shaping to improve the point spread function in optical coherence tomography,”Optics Letters, vol. 28, No. 20, Oct. 15, 2003, pp. 1921-1923.
W. Duncan et al., “DLP™ Switched Blaze Grating; the Heart of Optical Signal Processing,”MOEMS and Miniaturized Systems III, Proceedings of SPIE, vol. 4983 (2003), pp. 297-304.
Brochure by Newport, “Model OSP-9500 λ Commander Programmable Spectral Source,” 78-Photonics (2004), 2 pages in length.
Brochure by Newport, “Model OSP-9100 λ Commander Programmable Spectral Processor,” Photonics and Fiber Optics (2004), 2 pages in length.
Brochure by Newport, “λ Commander™ OSP-9100/OSP-9500 Programmable Spectral Processor and Programmable Spectral Source (Applications Optical Coherence Tomography),” Oct. 2003, 6 pages in length.
W. Duncan et al., “CommsDesign—Improving DWDM Performance with Optical Signal Processing,” printed from URL:http://www.commsdesign.com/showArticle.jhtml?articleID=16505850, printed Jul. 7, 2005, 13 pages in length.

Affiliated with

Also associated with

Rating

Broadband wavelength selective filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Broadband wavelength selective filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broadband wavelength selective filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3846887