Publications [#280485] of David J. Brady

Papers Published

1. Purchase, KG; Brady, DJ; Roh, SD; Lammert, RM; Osowski, ML; Coleman, JJ; Hughes, JS, Distributed Bragg pulse shaper: Demonstration and model, Journal of Lightwave Technology, vol. 17 no. 4 (April, 1999), pp. 621-628, Institute of Electrical and Electronics Engineers (IEEE)
   (last updated on 2023/06/01)

   Abstract:
   The distributed Bragg pulse-shaper (DBPS) is a series of electrically switchable Bragg mirrors on a semiconductor waveguide. The DBPS encodes data packets using parallel electrical signals to set the states of the Bragg mirrors. A broad-band source pulse then probes the device to generate a high bandwidth serial wavepacket from the train of partially reflecting mirrors. This paper describes a DBPS constructed in AlGaAs. Using this device and a mode-locked Ti:sapphire laser, we create a 4-bit packet with 0.37 Tb/s burst bit rate and we demonstrate for the first time that bits in the wavepacket can be switched by electrical modulation of individual Bragg segments. We also describe a model collaborating the observed data.

   Keywords:
   Pulse shaping circuits;Mirrors;Optical waveguides;Data communication equipment;Packet networks;Semiconducting aluminum compounds;Semiconducting gallium arsenide;Solid state lasers;Ultrafast phenomena;Integrated optics;Mathematical models;