US 11,714,232 B2
Optical coupling device
Tobias Kippenberg, Aran (CH); John Jost, Lausanne (CH); Miles Anderson, Lausanne (CH); and Junqiu Liu, Lausanne (CH)
Assigned to ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL), Lausanne (CH)
Appl. No. 16/982,469
Filed by ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), Lausanne (CH)
PCT Filed Mar. 21, 2019, PCT No. PCT/IB2019/052300
§ 371(c)(1), (2) Date Sep. 18, 2020,
PCT Pub. No. WO2019/180655, PCT Pub. Date Sep. 26, 2019.
Claims priority of provisional application 62/645,927, filed on Mar. 21, 2018.
Prior Publication US 2021/0072459 A1, Mar. 11, 2021
Int. Cl. G02B 6/293 (2006.01); G02B 6/122 (2006.01); G02B 6/12 (2006.01)
CPC G02B 6/1228 (2013.01) [G02B 6/29341 (2013.01); G02B 2006/1204 (2013.01); G02B 2006/12061 (2013.01); G02B 2006/12147 (2013.01)] 23 Claims
OG exemplary drawing
 
1. Optical coupling device including:
at least one supporting layer comprising a first support wall and a second support wall,
wherein the at least one supporting layer comprises at least one bridging waveguide for coupling electromagnetic radiation to and from an optical resonator or optical device, the at least one bridging waveguide extending between the first support wall and the second support wall,
wherein the at least one bridging waveguide and the at least one supporting layer comprise or consist solely of the same material,
wherein the at least one bridging waveguide is directly in contact with only the first support wall and only the second support wall to extend between the first support wall and the second support wall,
wherein the at least one bridging waveguide includes a center located between a first extremity and a second extremity, and the at least one bridging waveguide has a cross-sectional profile tapering outward in a direction running from the center of the bridging waveguide towards the first extremity and/or the second extremity of the bridging waveguide.