US 12,321,081 B2
Photonic-crystal resonators for spontaneous optical-pulse generation
Su-Peng Yu, Boulder, CO (US); and Scott B. Papp, Boulder, CO (US)
Assigned to The Regents of the University of Colorado, Denver, CO (US); and Government of the United States of America, as represented by the Secretary of Commerce, Gaithersburg, MD (US)
Filed by The Regents of the University of Colorado, Denver, CO (US); and Government of the United States of America, as represented by the Secretary of Commerce, Gaithersburg, MD (US)
Filed on Jan. 25, 2022, as Appl. No. 17/648,913.
Claims priority of provisional application 63/141,312, filed on Jan. 25, 2021.
Prior Publication US 2024/0248368 A1, Jul. 25, 2024
Int. Cl. G02F 1/365 (2006.01)
CPC G02F 1/365 (2013.01) 8 Claims
OG exemplary drawing
 
1. A photonic-crystal resonator (PhCR), comprising:
a ring having an outer radial wall, and an inner radial wall, and an inner radius, defined by a distance to the inner radial wall, that varies as a periodic function of azimuthal angle; and
a waveguide lying tangential to the outer radial wall.