Unidirectional chip-to-fiber grating couplers in unmodified 45nm CMOS technology
- Resource Type
- Conference
- Authors
- Wade, Mark T.; Kumar, Rajesh; Nammari, Kareem; Gentry, Cale M.; Shainline, Jeffrey M.; Orcutt, Jason S.; Tamma, Ananth; Ram, Rajeev; Stojanovic, Vladimir; Popovic, Milos A.
- Source
- 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications Lasers and Electro-Optics (CLEO), 2014 Conference on. :1-2 Jun, 2014
- Subject
- Photonics and Electrooptics
Gratings
Couplers
CMOS integrated circuits
CMOS process
Optical device fabrication
Optical scattering
Finite difference methods
- Language
- ISSN
- 2160-8989
We propose and demonstrate the first asymmetric unidirectional grating couplers fabricated in a 45nm unmodified CMOS process. Measured coupling efficiency from fiber-to-chip is ∼ 40 %. Simulations show >70% efficiency is achievable with same design.