US 9,810,846 B2
Coupling methods and systems using a taper
Dirk Taillaert, Bredene (BE); Diederik Vermeulen, Sint-Pauwels (BE); Jonathan Schrauwen, Gentbrugge (BE); and Gunther Roelkens, Melle (BE)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Dirk Taillaert, Bredene (BE); Diederik Vermeulen, Sint-Pauwels (BE); Jonathan Schrauwen, Gentbrugge (BE); and Gunther Roelkens, Melle (BE)
Filed on Oct. 14, 2011, as Appl. No. 13/273,669.
Claims priority of provisional application 61/393,152, filed on Oct. 14, 2010.
Claims priority of application No. 10187757 (EP), filed on Oct. 15, 2010.
Prior Publication US 2012/0093456 A1, Apr. 19, 2012
Int. Cl. G02B 6/12 (2006.01); G02B 6/30 (2006.01); G02B 6/122 (2006.01)
CPC G02B 6/305 (2013.01) [G02B 6/1228 (2013.01); G02B 6/12 (2013.01); G02B 6/122 (2013.01); G02B 6/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical device comprising:
a semiconductor die comprising an integrated optical waveguide; and
an overlying optical waveguide comprising a waveguide taper, wherein:
the overlying optical waveguide at least partially overlies an integrated optical waveguide core; and
the waveguide taper of the overlying optical waveguide comprises a waveguide facet, the waveguide facet being at a distance from an edge of the semiconductor die, the distance being between about 1 μm and 200 μm,
wherein the integrated optical waveguide comprises an optical waveguide core having a core taper, wherein the core taper has a double-tip structure and the overlying optical waveguide is shaped to couple radiation between the optical waveguide core and an external medium.