Wavelength detector

Details Wavelength detector Wavelength detector

2007-08-07

2007-08-07

Connolly, Patrick (Department: 2877)

Optics: measuring and testing

By shade or color

With color transmitting filter

C356S222000

Reexamination Certificate

active

10814755

ABSTRACT:
A radiation measurement device for determining a wavelength-related characteristic of radiation from a radiation source is provided. The device includes a wavelength-dependent optical element (e.g., bandpass filter), and an optical power-measuring detector (e.g., photodetector). At least one optical beam is incident onto a polarization-sensitive reflective and/or transmissive surface positioned along an optical path of the device, is transmitted by the wavelength-dependent optical element, and is received by the optical power-measuring detector along the optical path. The radiation measurement device further includes a linear polarizer placed along the optical path prior to the optical power-measuring detector. In operation, the linear polarizer ensures that the beam received from the polarization-sensitive reflective and/or transmissive surface has a substantially fixed state of polarization, regardless of the polarization state of the original incident optical beam, to thereby reduce or eliminate uncontrolled polarization-dependent errors in the radiation measurement device.

REFERENCES:
patent: 4308456 (1981-12-01), Van Der Gaag et al.
patent: 5627648 (1997-05-01), Garrett
patent: 5729347 (1998-03-01), So
patent: 6400739 (2002-06-01), Auracher
patent: 6618129 (2003-09-01), Dries et al.
patent: 7088441 (2006-08-01), Nahum et al.
patent: 2002/0126288 (2002-09-01), Friberg et al.
patent: 2003/0053064 (2003-03-01), Nishimura et al.
patent: 2003/0219250 (2003-11-01), Wein et al.
patent: 2005/0201751 (2005-09-01), Yao

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