Directional Coupler: pulley-coupled

[lukasc-ubc]

A request to implement a Layout PCell + CML for a fully-parameterized directional coupler for pulley-coupled resonators, with the following parameters:

• g: gap
• rr: Radius of the ring.
• rb: Radius of the bus (set the default to be 2Rr as in Fig 1).
• wr: Waveguide width for the ring
• wb: Waveguide width for the bus coupler
• rc: Radius of the coupler, for the waveguide leaving the ring.
• theta: The arc for the coupler
• pol: 'TE' or 'TM'; for use in INTERCONNECT calling FDTD to simulate one of these if pol is defined, or simulate both if undefined.
• wavelength: default 1550. Consider a simulation bandwidth of 10% of the central wavelength. Used by the INTERCONNECT-FDTD simulation.

name: ebeam_dc_halfring_pulley

generate an icon (SWG file)

See Figure 1 in the following paper:

Nourhan Eid, Hasitha Jayatilleka, Michael Caverley, Sudip Shekhar, Lukas Chrostowski, Nicolas A. Jaeger, "Wide FSR Silicon-on-Insulator Microring Resonator with Bent Couplers", IEEE Group IV Photonics Conference, 08/2015