Experimental demonstration of an ultracompact polarization beam splitter based on a bidirectional grating coupler

• A bidirectional grating serving both as a polarization beam splitter and a vertical coupler for Silicon on Insulator nanophotonic circuits is fabricated and characterized. The measured coupling efficiency is as high as 43%. The demonstrated device has a large 3-dB bandwidth and a high extinction ratio between two orthogonal polarizations.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

Coupling efficiency

Extinction ratios

Grating couplers

Nanophotonic circuits

Orthogonal polarizations

Polarization beam splitters

Silicon on insulator

Nanophotonics

Optical beam splitters

Optical instruments

Particle beams

Prisms

Polarization

Publication and Content Type

ref (subject category)

kon (subject category)