Learn More
Buses have historically provided a flexible communications structure in computer systems. However, signal integrity constraints of high-speed electronics have made multi-drop electrical busses infeasible. Instead, we propose an optical data bus for computer interconnections. It has two sets of optical waveguides, one as a fan-out and the other as a fan-in,(More)
A novel velocity-matched distributed balanced photodetector with a 50coplanar waveguide output transmission line has been experimentally demonstrated in the InP/InGaAs material system. Distributed absorption and velocity matching are employed to increase the saturation photocurrent. A commonmode rejection ratio greater than 27 dB has been achieved. The(More)
We present a free-space optical interconnect system capable of dynamic closed-loop optical alignment using a microlens scanner with a proportional integral and derivative controller. Electrostatic microlens scanners based on combdrive actuators are designed and characterized with vertical cavity surface emitting lasers (VCSELs) for adaptive optical beam(More)
A novel velocity-matched distributed balanced photodetector with a 50coplanar waveguide output transmission line has been experimentally demonstrated in the InP–InGaAs material system. Distributed absorption and velocity matching are employed to achieve high-saturation photocurrent. A common mode rejection ratio of 27 dB has been achieved. The RF link(More)
......Multidrop buses find many applications in computer systems, particularly in the I/O and memory systems. They let architects create readily expandable systems with uniform access times for all devices. A good example is expanding a computer’s main memory by adding more memory modules. For applications such as front-side buses, the ability to broadcast(More)
A novel dynamic dispersion compensator has been realized using MEMS microdisks with variable power-coupling ratio. The coupling is controlled by varying waveguide-disk spacing. A gmup velociw dispersion tuning range of 4OOps/mn has been achieved experimentally.' 01999 Optical Society of America OCIS codes: (000.0000) General Introduction Dynamic dispersion(More)
A distributed balanced photodetector with high saturation photocurrent and excellent linearity has been experimentally demonstrated. Distributed detection is shown experimentally to be important for the high saturation photocurrents. High-speed photodetectors with high saturation photocurrents are essential for high performance analog fiber optic links. In(More)