Polarization beam splitter

Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359496, 359629, 359638, G02B 530, G02B 2728, G02B 2714

Patent

active

056893671

ABSTRACT:
An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.

REFERENCES:
patent: 3720457 (1973-03-01), Swartz et al.
A. Shibukawa et al. "Compact Optical Circulator for Near Infrared Region", Electronics Letters vol. 14, No. 25, Dec. 1998, pp. 816-817.
Hecht, "Optics", 2nd edition, Addison-Wesley Publishing Co., Inc., 1987, pp. 288-292.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Polarization beam splitter 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 beam splitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization beam splitter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1569788

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.