Arbitrary state of polarization with customized degree of polarization generator

Abstract

An optical setup able to generate arbitrary states of polarization (SOPs) with customized degree of polarization is presented in this Letter. Compared with the few alternatives existing in literature, it presents an easy-to-build optical setup and leads to a superior performance. In fact, experimental results are presented, providing an accurate control for the generation of SOPs (maximum error of 1.7% and 3.3% for ellipticity and azimuth, respectively) as well as for the associated degree of polarization (full experimental variation from 1 up to 0.003, with a 1.7% maximum error). The system proposed may be useful for different applications, for example, for polarimeters testing, speckle metrology, and biological applications.

Polarization state generation and measurement with a single metasurface

“…To study the response of the metasurface-grating polarimeter to varying DOP, a deterministic means of producing partially polarized light is required. We employ a Mach-Zehnder-like setup with two polarization beamsplitters [2,42]. This is depicted in Fig.…”

“…On the other hand, when θ LP = 0°or 90°, all light goes along one path only and the beam is completely polarized. At intermediate angles, p = |cos θ LP | [42].…”

Customized Depolarization Spatial Patterns With Dynamic Retardance Functions

“…This device is intended for use with polychromatic light and it has been applied both with bulk optics [14] and with fiber optics [10]. Other recent techniques apply different strategies, as for instance, dividing the input beam in two orthogonal SoPs which are then recombined after modification of their properties in a Mach-Zenhder interferometer [15,16], or based on an imbalanced dual-frequency dual-polarization light source [17].…”

Fiber-guided modes conversion using superposed helical gratings

“…The latter two have attracted a rapidly growing interest in recent years, due to their unique features. The polarization has become extremely diversiform with exploiting arbitrary states of polarization [1,2], not just presents in the well-known vector fields with abundant vectorial polarization, such as cylindrically symmetric beams [3]. It can yield the optical chirality and spin, and manifests intrinsic spin angular momentum (SAM) of field [4].…”