Preparing arbitrary pure states of spatial qudits with a single phase-only spatial light modulator

23rd Congress of the International Commission for Optics

Varga, J.J.M.^1 ; Solís-Prosser, A.M.A.^2 ; Rebón, L.^3 ; Arias, A.^4 ; Neves, L.^5 ; Iemmi, C.^1 ; Ledesma, S.^1

Departamento de Física, FCEyN, Universidad de Buenos Aires, Buenos Aires

1428, Argentina^1

Center for Optics and Photonics, Universidad de Concepción, Casilla 4016, Concepcióne, Chile^2

Instituto de Física de la Plata, Universidad Nacional de la Plata, C.C. 67, La Plata

1900, Argentina^3

Center for Research, Instituto Tecnológico Metropolitano, Medellín

A.A 54954, Colombia^4

Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte

MG 30123-970, Brazil^5

关键词: Fourier planes;    In-phase;    Pure state;    Quantum state;    Relative phase;    Single phase;    Spatial filterings;    Spatial light modulators;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/605/1/012035/pdf
DOI  :  10.1088/1742-6596/605/1/012035

来源: IOP

【 摘 要 】

We present a new method for preparing multidimensional spatial qudits by means of a single phase-only spatial light modulator (SLM). This method improves previous ones that use two SLMs, one working in amplitude regime and the other in phase regime. To that end, we addressed diffraction gratings on the slits that define the state and then we performed a spatial filtering in the Fourier plane. The amplitude of the coefficients of the quantum state are determined by the modulation deep of the diffraction gratings, and the relative phase is the mean phase value of the diffraction gratings. This encoding result to be more compact, less expensive and use the photons more efficiently.