Dual SOA-MZI Wavelength Converters Based on III-V Hybrid Integration on a $\mu{\rm m}$-Scale Si Platform

Abstract

We report on the simultaneous wavelength conversion operation of a dual-element semiconductor optical amplifier-Mach-Zehnder interferometer (SOA-MZI) array hybridly integrated on a 4-µm silicon-on-insulator (SOI) waveguide platform through thermocompression bonding. The SOAs are part of a six-element SOA array with both facets coupled on SOI through vertical and horizontal alignments. The device achieves almost two orders of magnitude reduction in footprint compared with state-of-the-art hybridly integrated SOA-MZI structures. We present for the first time experimental proof of the successful operation of a dual-element SOA-MZI device based on III-V technology on SoI that serves as a wavelength converter, with one SOA-MZI yielding error-free performance with a 0.8-dB power penalty at 12.5 Gb/s and the second SOA-MZI operating error-free at 10 Gb/s with a 2-dB power penalty.Index Terms-Mach-Zehnder interferometer, semiconductor optical amplifier, wavelength conversion, hybrid integration, thermocompression bonding, dual-facet coupling.

Asymmetric Phase-Tunable MZI Integrated by External Adjustor

“…When the chip is connected with the adjustor based on the linear material, the phase shift of the APT-MZI is changed by, (2), as shown at the bottom of this page: where L armn is related to the length of the four arms, n e f f n is related to the effective refractive index of the four arms and the subscript n = 1, 2, 3, 4. L adjustor and n adjustor are related to the length and the effective refractive index of the adjustor, respectively.…”

“…M ACH-ZEHNDER Interferences (MZIs) are of great importance for many devices used in optical communications, optical sensing, and optical signal processing systems, because of their excellent functions, such as precision phase detection, multi-level series, band-pass filtering and so on [1], [2]. There are two main processes for fabricating MZIs, one of which is made by all-optical fiber and another by photonic waveguide.…”

High-Speed Optical Cache Memory as Single-Level Shared Cache in Chip-Multiprocessor Architectures

“…Moreover, recent work on demonstrating the most critical building blocks as integrated subsystems onto the silicon photonics fabrication platform [9] renders this scheme as highly promising for allowing the deployment of complete optical cache modules as silicon chips. Taking advantage of all these advances, we recently presented a complete and fully functional optical cache memory architecture that performs read/write operations directly in the optical domain [10], [11].…”

Cascaded all-optical operations in a hybrid integrated 80-Gb/s logic circuit

“…In this work, we use the hybrid integrated SOA-PLC to demonstrate the cascading of all-optical operations at a data rate of 80 Gb/s. Previous demonstrations of cascaded logic operations were made at data rates of 10-40 Gb/s [23,24].…”