Flip-chip optical couplers with scalable I/O count for silicon photonics

Fiber to Waveguide Couplers for Silicon Photonics

As silicon photonics enters mainstream technology, we find ourselves in need of methods to seamlessly transfer light between the optical fibers of global scale telecommunications networks and the on-chip waveguides used for signal routing and processing in local computing networks. Connecting these components directly results in high loss from their unequal sizes. Therefore, we employ a coupler...

On-chip intra- and inter-layer grating couplers for three-dimensional integration of silicon photonics

Focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces.

We report on the design and characterization of focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces. With implementation of waveguide dispersion engineered subwavelength structures, an ultra-wide 1-dB bandwidth of over 100 nm (largest reported to date) near 1550 nm is experimentally achieved for transverse-electric polarized light. By tapering...

III-V/silicon photonics for on-chip and intra-chip optical interconnects

In this paper III-V on silicon-on-insulator (SOI) heterogeneous integration is reviewed for the realization of near infrared light sources on a silicon waveguide platform, suitable for inter-chip and intra-chip optical interconnects. Two bonding technologies are used to realize the III-V/SOI integration: one based on molecular wafer bonding and the other based on DVSBCB adhesive wafer bonding. ...

Next Generation of Integrated Circuits: Silicon Photonics for on-Chip Interconnects and Optical Sensing

The last 10 years have seen the emergence of two-dimensional (2D) nanomaterials such as graphene, transition metal dichalcogenides (TMDs), and black phosphorus (BP) among the growing portfolio of layered van der Waals thin films. Graphene, the prototypical 2D material has advanced rapidly in device, circuit, and system studies that have resulted in commercial large-area applications. In this wo...