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Significant progress in silicon photonics has led to flattop filters, polarization independence, low power modulators and switches, and low dark current germanium detectors.Future challenges reside in...
Low Power and Broadband 2 X 2 Silicon Thermo-Optic Switch
Low Power Broadband Thermo-Optic Switch
2011/5/21
We present a 2X2 silicon thermo-optic switch which requires a switching power of only ～12.5 mW and has a response time of 5.4 μs. The measured extinction ratio of the switch is >～20 dB across the C an...
Silicon Electro-Optic 4x4 Non-Blocking Switch Array for On-Chip Photonic Networks
iber optics and optical communications: Networks Integrated optics Optical switching devices Optical devices Micro-optical devices
2011/5/21
Silicon 4x4 switch array based on carrier-injection for switching of multiple 40Gbps WDM channels is reported. Operation in all 9 unique switch states and 12 possible I/O routings is verified with cro...
First Demonstration of Symmetric 10-Gb/s Access Networks Architecture based on Silicon Microring Single Sideband Modulation for Efficient Upstream Signal Re-modulation
Fiber optics communications Integrated optics devices
2011/5/21
We demonstrate an optical access network utilizing downstream silicon microring single-sideband modulation and upstream phase-remodulation of a centrally distributed carrier. Rayleigh-backscattering i...
Wide Bandwidth, Low Loss 1 by 4 Wavelength Division Multiplexer on Silicon for Optical Interconnects
Wide Bandwidth Low Loss 1 by 4 Wavelength Division Multiplexer Silicon Optical Interconnects
2011/5/20
We demonstrate an add/drop filter based on coupled vertical gratings on silicon. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 3nm bandwidth,1dB insertion loss and...
CMOS-Compatible Scalable Photonic Switch Architecture Using 3D-Integrated Deposited Silicon Materials for High-Performance Data Center Networks
CMOS-Compatible Scalable Photonic Switch Architecture 3D-Integrated Deposited Silicon Materials High-Performance Data Center Networks
2011/5/20
We propose a novel fully-integrated scalable photonic switch architecture for data center networks, sustaining nonblocking 256×256 port size with nanosecond-scale switching times,interconnecting 2,560...
10Gb/s Silicon Modulator Based on Bulk-Silicon Platform for DRAM Optical Interface
Silicon Modulator Bulk-Silicon DRAM Optical Interface
2011/5/15
We present 10Gb/s silicon Mach-Zehnder modulators fabricated on a bulk silicon wafer.10Gb/s data transmission with extinction ratio of >9dB at de-emphasis level of 12dB is successfully demonstrated.
Design and Implementation of Phase-Shifted Distributed Feedback Lasers on the Hybrid Silicon platform.
Hybrid Silicon Distributed Feedback Lasers
2011/5/15
We fabricate, and characterize 36 designs of phase-shifted distributed-feedback lasers,varying κL products and shift lengths, in good agreement with theoretical calculations on the hybrid silicon plat...
A Polarization Diversity Circuit for Silicon Photonics
Silicon Photonics Polarization Diversity Circuit
2011/5/15
A polarization diversity circuit in silicon waveguide was developed. The polarization dependent loss is 0.5dB. The insertion loss from the polarization diversity components is 3dB. The extinction rati...
Numerical study on thermal stress cutting of silicon wafer using two-point pulsed laser
brittle materials thermal stress laser cutting
2010/11/1
Laser cutting using the controlled fracture technique has great potential to be used for the separation
of brittle materials. In this technique, thermal stress is used to induce the crack and the mat...
Mapping local optical densities of states in silicon photonic structures with nanoscale electron spectroscopy
Mapping local optical densities silicon photonic structures nanoscale electron spectroscopy
2010/8/10
Relativistic electrons in a structured medium generate radiative losses such as Cherenkov and transition radiation that act as a virtual light source, coupling to the photonic densities of states. The...
First 80-Gb/s and 160-Gb/s Wavelength-Converted Data Stream Measurements in a Silicon Waveguide
Wavelength conversion devices Nonlinear optics four-wave mixing
2010/6/10
Data fidelity is inspected for the first time for wavelength-converted RZ TDM 80- and 160-Gb/s data using four-wave mixing in a silicon waveguide. Open eye diagrams and error-free operation is shown f...
Fully Reconfigurable Silicon Photonic Lattice Filters with Four Cascaded Unit Cells
Reconfigurable Silicon Photonic Lattice Filters Four Cascaded
2010/6/10
We present a fully-reconfigurable CMOS-compatible silicon-photonic lattice-filter with four cascaded unit cells consisting of resonant rings and Mach-Zehnder interferometers. The measurements show hig...
A Programmable Optical Filter Unit Cell Element for High Resolution RF Signal Processing in Silicon Photonics
Radio frequency photonics Analog Optical Signal Processing Integrated Optics
2010/6/10
We demonstrate the first reconfigurable, cascadable silicon photonics unit cell fabricated in commercial wafer-scale processes using a single 500ps delay line and allowing independent FIR and IIR resp...
Silicon Integrated Waveguide Devices for Filtering and Wavelength Demultiplexing
Wavelength filtering devices Optical interconnects
2010/6/10
Following different approaches, we have realized a number of different silicon integrated demultiplexers for WDM-based on-chip optical interconnects. We compare these devices based on their size, tran...