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A broadband prismatic rotator rotates the linear polarization by 90° using seven internal reflections to induce collinear rotation, as shown in the diagram. The polarization is rotated in the second reflection, but that leaves the beam in a different plane and at a right angle relative to the
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of left- and right-handed circularly polarized waves, the difference in phase velocity causes the polarization direction of a linearly-polarized wave to rotate as it propagates through the material. The direction of the rotation depends on whether the light is propagating with or against the
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incident beam. The other reflections are necessary to yield a beam with its polarization rotated and collinear with the input beam. These rotators are reported to have transmission efficiencies better than 94%.
144:(PDL) with accuracies not obtainable with rotating waveplate methods, thanks to the binary nature of the MO switches. Furthermore, MO switches have also been successfully adopted to generate
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A Faraday rotator consists of an optical material in a magnetic field. When light propagates in the material, interaction with the magnetic field causes left- and right-handed
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direction of the magnetic field: a rotation induced by passing through the material is not undone by passing through it in the opposite direction. This can be used to make an
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Prism rotators use multiple internal reflections to produce beams with rotated polarization. Because they are based on total internal reflection, they are
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rotates the linear polarization axis by 90° using four internal reflections. A disadvantage may be a low ratio of useful optical aperture to length.
136:(PSA) with high accuracy. In particular, the PSG and PSA made with magneto-optic (MO) switches have been successfully used to analyze
128:. These devices can be used to rapidly change the angle of polarization in response to an electric signal, and can be used for rapid
116:. Their performance is wavelength-specific; a fact that may be a limitation. Switchable wave plates can also be manufactured out of
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beams tend to be linearly polarized and it is often necessary to rotate the original polarization to its orthogonal alternative.
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F. J. Duarte, Optical device for rotating the polarization of a light beam, US Patent 4822150 (18th of April, 1989)
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62:. Rotators of linearly polarized light have found widespread applications in modern optics since
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271:, W. G. Driscoll and W. Vaughan, Eds. (McGraw-Hill, New York, 1978) Chapter 10.
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Optical device which rotates the polarization axis of polarized light
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light beam by an angle of choice. Such devices can be based on the
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alter the polarization of light due to the principle of
88:. Since a linearly-polarized wave can be described as a
238:, 2nd Edition (CRC, New York, 2015) Chapter 5
34:A half-wave plate rotates polarization by 90°
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84:waves to propagate with slightly different
164:Broadband prismatic polarization rotator
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42:is an optical device that rotates the
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267:and H. E. Bennett, Polarization, in
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172:—they work over a broad range of
152:and PMD emulation applications.
122:ferro-electric liquid crystals
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130:polarization state generation
138:polarization mode dispersion
190:Broadband prismatic rotator
142:polarization dependent loss
134:polarization state analysis
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60:total internal reflection
146:differential group delay
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126:magneto-optic crystals
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101:Birefringent rotators
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293:Polarization (waves)
236:Tunable Laser Optics
180:Double Fresnel rhomb
82:circularly polarized
40:polarization rotator
18:Polarisation rotator
110:quarter-wave plates
269:Handbook of Optics
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48:linearly polarized
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16:(Redirected from
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205:Optical rotation
150:PMD compensation
106:Half-wave plates
95:optical isolator
86:phase velocities
70:Faraday rotators
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288:Optical devices
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118:liquid crystals
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74:Main article:
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52:Faraday effect
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231:F. J. Duarte
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44:polarization
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174:wavelengths
282:Categories
211:References
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46:axis of a
183:A double
170:broadband
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199:See also
58:, or on
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64:laser
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148:for
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38:A
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