Translator Disclaimer
4 November 2016 Versatile asymmetric directional couplers on silicon
Author Affiliations +
The coupling in a directional coupler (DC) has attracted lots of attention as a basic block for photonic integrated circuits. Most of previous work was focused on symmetric DCs consisting of two identical optical waveguides. In this case light power can be transferred from one waveguide to the other one completely when choosing the length L of the coupling region appropriately. Recently, an asymmetric DC (ADC) consisting of non-identical waveguides in the coupling region has been attracting more and more attention because of the versatility for various useful applications. ADCs can be formed by combining two ore more waveguides with different dimensions, shapes as well as bending radii for the core regions. In particular, silicon nanophotonics developed in the recent years provides a very good platform to make ADCs very useful and interesting. In this paper, we give a review for recent progresses of versatile ADCs on silicon, including the following three parts: (1) ADCs for power splitter used in microring resonators and Mach-Zehnder interferometers; (2) ADCs for realizing ultracompact and broadband PBSs; (3) ADCs for realizing mode (de)multiplexers.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daoxin Dai and Chenlei Li "Versatile asymmetric directional couplers on silicon", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 100270U (4 November 2016);


Second order add/drop filter with a single ring resonator
Proceedings of SPIE (February 20 2017)
Optical micro-cavities on silicon
Proceedings of SPIE (January 12 2018)
Box like optical filter based on race track high order...
Proceedings of SPIE (January 30 2019)
Active ring resonators based on GaInAsP/InP
Proceedings of SPIE (March 11 2003)

Back to Top