The distributed Bragg pulse shaper: demonstration and model

• Published in: Journal of lightwave technology Vol. 17; no. 4; pp. 621 - 628
• Main Authors: Purchase, K.G., Brady, D.J., Roh, S.D., Lammert, R.M., Osowski, M.L., Coleman, J.J., Hughes, J.S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.1999; Institute of Electrical and Electronics Engineers
• Subjects: Aluminum gallium arsenides; Applied sciences; Bandwidth; Bit rate; Circuit properties; Collaboration; Devices; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Integrated optics. Optical fibers and wave guides; Laser mode locking; Mathematical models; Mirrors; Modulation; Optical and optoelectronic circuits; Optical pulse generation; Packet switching; Probes; Pulse shaping methods; Semiconductor waveguides; Semiconductors; Serials; Shapers; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Trains; Integrated optics; Distributed Bragg reflection; Optical telecommunication; Shaping; Transmitter; Rapid transmission; Experimental study; Optical pulse
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/50.754792

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 are 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.