Title :
Polarization Diversified Integrated Circuits for Orbital Angular Momentum Multiplexing
Author :
Binbin Guan ; Chuan Qin ; Scott, Ryan P. ; Fontaine, Nicolas K. ; Tiehui Su ; Proietti, Roberto ; Yoo, S.J.B.
Author_Institution :
Univ. of California, Davis, Davis, CA, USA
Abstract :
We present a free-space coherent communication link employing orbital angular momentum (OAM) multiplexing using polarization diversified 2D-3D hybrid photonic integrated circuits (PICs). The PICs support multiplexing/demultiplexing of up to 15-OAM states with dual polarizations. We characterize the hybrid device, including phase errors and crosstalk performance. Then, we use two hybrid PICs for a free-space coherent communication link demonstration. We utilize polarization, frequency, quadrature, and space dimensions to achieve a 1.68-Tb/s link bandwidth and a 9.6-b/s/Hz spectral efficiency.
Keywords :
integrated optics; multiplexing; optical communication equipment; optical crosstalk; optical links; optical waveguides; quadrature amplitude modulation; 15-OAM states; bit rate 1.68 Tbit/s; crosstalk performance; dual polarization; free-space coherent communication link demonstration; hybrid PIC; multiplexing/demultiplexing; orbital angular momentum multiplexing; phase errors; polarization diversified 2D-3D hybrid photonic integrated circuits; polarization diversified integrated circuits; Bit error rate; Crosstalk; Optical fiber communication; Optical waveguides; Three-dimensional displays; Wavelength division multiplexing; Coherent communications; Glass waveguides; Multiplexing; Optical vortices; Orbital angular momentum; glass waveguides; multiplexing; optical vortices; orbital angular momentum;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2406771
