&lt;title&gt;Survey Of Methods For The Complete Determination Of A State Of Polarization&lt;/title&gt;

Hauge, P.S.

doi:10.1117/12.955006

Cited by 30 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The grating transforms an incident TB wave in a frequency-shifted TM wave and vice versa. The Jones matrix of the device in usual TB-TM coordinates (electrical and acoustical angular frequency o, retardation p = 2 id, coupling constant IC, interaction length 1) M( ) = [ cos/2 _jet sin /2 (1) [_jeJ)t sin p/2 cosp/2 is equal to the Jones matrix of a rotating waveplate in circular coordinates with physical angular rotation frequency a/2 . Hence an acoustooptical TE-TM converter can be used to replace a rotating waveplate in many applications, including polarization analysis.…”

Section: Theorymentioning

confidence: 99%

See 1 more Smart Citation

Single- and double-stage acousto-optical Ti:LiNbO 3 TE-TM converters used in wavelength-selective polarimeter and polarization-independent depolarizer

et al. 1995

View full text Add to dashboard Cite

A Ti:LiNbO3 acoustooptical TE-TM converter followed by a 45 linear polarizer allows to measure the Stokes parameters. A wavelength-selective demonstration unit with 9 MHz electrical measurement bandwidth, roughly 0.04 rad accuracy and 250 GHz optical bandwidth has been developed.An acoustooptical TE-TM converter whose transducer is placed at 1/3 ofthe interaction length forms a polarization-independent optical depolarizer, suitable to suppress polarization hole burning in long haul EDFA links. We present a double-stage depolarizer with 0.03 residual degree-of-polarization, 1 10 GHz optical bandwidth and 4 ps depolarization time.1. POLARIMETER IntroductionSome optical polarimeters contain O, 450 and circular polarizers for measurement ofthe respective Stokes parameters. Another approach is a rotating-waveplate polarimeter' . The introduction of optical communication techniques such as wavelength-division multiplexing, minimization of polarizationdependent optical nonlinearities, and polarization shift keying requires a wavelength-selective polarimeter. It can be made from an optical filter plus a conventional, say, rotating-waveplate polarimeter. A similar but simpler approach is to realize both in one component: A Ti:LiNbO3 acoustooptical TE-TM converter4'5 followed by a 450 linear polarizer allows to measure the Stokes parameters wavelength-selectively6. We have developed a computer-controlled demonstration unit with 9 MHz electrical measurement bandwidth, roughly 0.04 rad accuracy and 250 GHz optical bandwidth. We further discuss how weighted acoustical coupling and lock-in detection can improve selectivity and sensitivity. TheoryA piezoelectrical interdigital transducer that is driven by an RF signal generates a moving acoustical density grating in an integrated-optical TE-TM converter (Fig. 1 a). The grating transforms an incident TB wave in a frequency-shifted TM wave and vice versa. The Jones matrix of the device in usual TB-TM coordinates (electrical and acoustical angular frequency o, retardation p = 2 id, coupling constant IC, interaction length 1) M( ) = [ cos/2 _jet sin /2 (1) [_jeJ)t sin p/2 cosp/2 O-819418005/95/$6.OO SPIE Vol. 2449 /365 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/22/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

show abstract

Section: Theorymentioning

confidence: 99%

“…The frequency has to be tuned for phase matching between acoustical wavelength and optical beat wavelength in the birefringent crystal. The optical frequency is proportional to the specific electrical frequency (1) for which a maximum value of + s + S is obtained. Hence optical wavelength and state-of-polarization can both be determined.…”

Section: Theorymentioning

confidence: 99%

Single- and double-stage acousto-optical Ti:LiNbO 3 TE-TM converters used in wavelength-selective polarimeter and polarization-independent depolarizer

et al. 1995

View full text Add to dashboard Cite

show abstract

“…Figure 1 shows how the IDID could be used in a compact solar magnetograph. Together, the liquid-crystal retarder and the IDID discriminate between circularly-polarized light (Stokes V) and the linear components (Stokes Q and U parameters) (Hauge, 1976). The blocking filter and the Fabry-Perot etalon isolate a small part of the profile of a magnetically-sensitive atomic line in the solar spectrum.…”

Section: Solar Researchmentioning

confidence: 99%

“…To fully characterize the state of polarization of incoherent light, at least five measurements must be made (Hauge, 1976), and these are usually obtained sequentially. Even at TV rates (30 images/sec), small scene changes between successive frames can seriously degrade polarization measurements derived by subtracting successive images.…”

Section: Need For An Improved Imaging Photopolarimetermentioning

confidence: 99%

An integrated imaging detector of polarization and spectral content

Rust

Thompson

1994

Remote Sensing Reviews

View full text Add to dashboard Cite

A new type of image detector has been designed to simultaneously analyze the polarization of light at all picture elements in a scene. The Integrated Dual Imaging Detector (IDID) consists of a polarizing beamsplitter bonded to a chargecoupled device (CCD), with signal-analysis circuitry and analog-to-digital converters, all integrated on a silicon chip. It should be capable of 1 : 10 4 polarization discrimination. The IDID should simplify the design and operation of imaging polarimeters and spectroscopic imagers used, for example, in atmospheric and solar research. Innovations in the IDID include (1) two interleaved 512 x 1024-pixel imaging arrays (one for each polarization plane); (2) large dynamic range (well depth of 10 6 electrons per pixel); (3) simultaneous readout of both images at 10 million pixels per second each; (4) on-chip analog signal processing to produce polarization maps in real time; (5) on-chip 10-bit A/D conversion. When used with a lithium-niobate Fabry-Perot etalon or other color filter that can encode spectral information as polarization, the IDID can collect and analyze simultaneous images at two wavelengths. Precise photometric analysis of molecular or atomic concentrations in the atmosphere is one suggested application. When used in a solar telescope, the IDID will charge the polarization, which can then be converted to maps of the vector magnetic fields on the solar surface.

show abstract

“…(8) is very similar to what one gets with the rotating-analyzer ellipsometer. 6 To extract S 0 , S 1 , and S 2 , the detector parameters k, R, and ψ must be known or measured by calibration.…”

mentioning

confidence: 99%

Response of the rotating-detector ellipsometer to incident partially polarized light

Azzam

1986

Appl. Opt.

View full text Add to dashboard Cite

<title>Survey Of Methods For The Complete Determination Of A State Of Polarization</title>

Cited by 30 publications

References 0 publications

Single- and double-stage acousto-optical Ti:LiNbO 3 TE-TM converters used in wavelength-selective polarimeter and polarization-independent depolarizer

Single- and double-stage acousto-optical Ti:LiNbO 3 TE-TM converters used in wavelength-selective polarimeter and polarization-independent depolarizer

An integrated imaging detector of polarization and spectral content

Response of the rotating-detector ellipsometer to incident partially polarized light

Contact Info

Product

Resources

About