Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

Legre, Matthieu, Wegmuller, Mark, Gisin, Nicolas

Published Jan 1, 2003• 1 citation

Abstract

A novel method for the direct measurement of the degree of polarization is described. It is one of the first practical implementations of a coherent quantum measurement, the projection on the singlet state. Our first results demonstrate the successful operation of the method. However, due to the nonlinear crystals used presently, its application is limited to spectral widths larger than ~8nm.

Related papers

Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

M. Legre, M. Wegmuller, N. Gisin

A novel method for the direct measurement of the degree of polarization is described. It is one of the first practical implementations of a coherent quantum measurement, the projection on the singlet state. Our first results demonstrate the successful operation of the method. However, because of the nonlinear crystals used at present, its application is limited to spectral widths larger than about 8 nm.

arXiv:quant-ph/0207055Journal of Modern OpticsJul 1, 20031 citation

Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

Matthieu Legré, Mark Wegmüller, N. Gisin

A novel method for the direct measurement of the degree of polarization is described. It is one of the first practical implementations of a coherent quantum measurement, the projection on the singlet state. Our first results demonstrate the successful operation of the method. However, because of the nonlinear crystals used at present, its application is limited to spectral widths larger than about 8 nm.

Journal of Modern OpticsJan 1, 20030 citations

Quantum Measurement of the Degree of Polarization of a Light Beam

Matthieu Legré, Mark Wegmüller, Nicolas Gisin

We demonstrate a coherent quantum measurement for the determination of the degree of polarization (DOP). This method allows us to measure the DOP in the presence of fast polarization state fluctuations, difficult to achieve with the typically used polarimetric technique. A good precision of the DOP measurements is obtained using eight type II nonlinear crystals assembled for spatial walk-off compensation.

arXiv:quant-ph/0305019Physical Review LettersOct 16, 200320 citations

Coherent quantum measurement for the direct determination of the degree of polarization and polarization mode dispersion compensation

Nicolas Gisin

An example of a coherent measurement for the direct evaluation of the degree of polarization of a single-mode optical beam is presented. It is applied to the case of great practical importance where depolarization is caused by polarization mode dispersion. It is demonstrated that coherent measurement has the potential of significantly increasing the information gain, compared to standard incoherent measurements.

arXiv:quant-ph/0010036Journal of Modern OpticsJul 1, 200112 citations

Coherent quantum measurement for the direct determination of the degree of polarization and polarization mode dispersion compensation

Nicolas Gisin

Journal of Modern OpticsJul 10, 20011 citation

Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states

U. Schilling, Joachim von Zanthier, G. S. Agarwal

arXiv:0908.1662Physical Review AJan 26, 201029 citations

Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

Legre, Matthieu, Wegmuller, Mark, Gisin, Nicolas

Published Jan 1, 2003• 1 citation

OpenAlex

Abstract

Related papers

Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

M. Legre, M. Wegmuller, N. Gisin

A novel method for the direct measurement of the degree of polarization is described. It is one of the first practical implementations of a coherent quantum measurement, the projection on the singlet state. Our first results demonstrate the successful operation of the method. However, because of the nonlinear crystals used at present, its application is limited to spectral widths larger than about 8 nm.

arXiv:quant-ph/0207055Journal of Modern OpticsJul 1, 20031 citation

Experimental investigation of a coherent quantum measurement of the degree of polarization of a single-mode light beam

Matthieu Legré, Mark Wegmüller, N. Gisin

A novel method for the direct measurement of the degree of polarization is described. It is one of the first practical implementations of a coherent quantum measurement, the projection on the singlet state. Our first results demonstrate the successful operation of the method. However, because of the nonlinear crystals used at present, its application is limited to spectral widths larger than about 8 nm.

Journal of Modern OpticsJan 1, 20030 citations

Quantum Measurement of the Degree of Polarization of a Light Beam

Matthieu Legré, Mark Wegmüller, Nicolas Gisin

arXiv:quant-ph/0305019Physical Review LettersOct 16, 200320 citations

Coherent quantum measurement for the direct determination of the degree of polarization and polarization mode dispersion compensation

Nicolas Gisin

arXiv:quant-ph/0010036Journal of Modern OpticsJul 1, 200112 citations

Coherent quantum measurement for the direct determination of the degree of polarization and polarization mode dispersion compensation

Nicolas Gisin

Journal of Modern OpticsJul 10, 20011 citation

Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states

U. Schilling, Joachim von Zanthier, G. S. Agarwal

A scheme is discussed for measuring $N$ th-order coherences of two orthogonally polarized light fields in a single spatial mode at very limited experimental cost. To implement the scheme, the only measurements needed are the $N$ th-order intensity moments after the light beam has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific settings of the wave plates. It is shown that this method can be applied for arbitrarily large $N$ . A set of explicit values is given for the settings of the wave plates, constituting an optimal measurement of the $N$ th-order coherences for any $N$ . For Fock states the method introduced here corresponds to a full state tomography. Applications of the scheme to systems other than polarization optics are discussed.A scheme is discussed for measuring $N$th-order coherences of two orthogonally polarized light fields in a single spatial mode at very limited experimental cost. To implement the scheme, the only measurements needed are the $N$th-order intensity moments after the light beam has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific settings of the wave plates. It is shown that this method can be applied for arbitrarily large $N$. A set of explicit values is given for the settings of the wave plates, constituting an optimal measurement of the $N$th-order coherences for any $N$. For Fock states the method introduced here corresponds to a full state tomography. Applications of the scheme to systems other than polarization optics are discussed.

arXiv:0908.1662Physical Review AJan 26, 201029 citations

A scheme is discussed for measuring

N

th-order coherences of two orthogonally polarized light fields in a single spatial mode at very limited experimental cost. To implement the scheme, the only measurements needed are the

N

th-order intensity moments after the light beam has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific settings of the wave plates. It is shown that this method can be applied for arbitrarily large

N

. A set of explicit values is given for the settings of the wave plates, constituting an optimal measurement of the

N

th-order coherences for any

N

. For Fock states the method introduced here corresponds to a full state tomography. Applications of the scheme to systems other than polarization optics are discussed.