Broadband integrated polarization beam splitting based on anisotropic adiabatic transfer of light

Rim Alrifai (1) , Virginie Coda (1) , Andon A Rangelov (2) , Germano Montemezzani (1)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes
2 Софийски университет = Sofia University

A concept for the realization of waveguide-based polarization beam splitters working over a wide spectral range is presented. The adiabatically evolving three-waveguide system is inspired by the quantum-mechanical stimulated Raman adiabatic passage process and involves waveguides with an anisotropic refractive index contrast. It is shown that an index contrast ratio of 5 is sufficient to obtain excellent efficiency and output polarization purity over a spectral range approximately equal to 350 nm centered at a wavelength of 1550 nm. The center wavelength can be easily modified by tuning the parameters of the waveguides.

Domaines: Optique [physics.optics]

Rim Alrifai, Virginie Coda, Andon A Rangelov, Germano Montemezzani. Broadband integrated polarization beam splitting based on anisotropic adiabatic transfer of light. Physical Review A, 2019, 100 (6), pp.063841. ⟨10.1103/PhysRevA.100.063841⟩. ⟨hal-02425080⟩