Status as of August 1st, 2004
I completed all the requirements for a Ph.D. in Electrical Engineering from Stanford University in March of 2004. From the end of March until the end of June 2004, I worked at the Naval Research Lab as a government contractor with SFA, Inc. I have since converted to a government employee and currently work at the Naval Research Lab in the field of Photonics (Optics).
Below you will find a brief description of my research activities at Stanford, upon which my dissertation was based, as well as a list of publications.

Stanford University Photonics and Networking Research Laboratory

My coursework and research at Stanford focused mainly on optical communications networks, including both architecture and protocol development.  During most of my time at Stanford, I contributed to a project called HORNET {Hybrid Opto-Electronic Ring Network.}  HORNET, funded in two phases - first by Sprint Advanced Technologies Labs, then by DARPA under the NGI program - provides packet transport at the physical layer.  The Sprint-funded and DARPA-funded HORNET websites give more detailed project descriptions, but I will briefly summarize below.

Metropolitan area networks (MANs) connect access points within a large geographical area (~100km circumference) to the internet backbone.  HORNET is a novel MAN architecture that addresses two fundamental shortcomings in traditional metro networks: (1) efficient transport of the ever-increasing quantity of bursty, best-effort internet traffic, and (2) cost-effective scalability, especially when considering peer-to-peer traffic across a metropolitan area.

In the current implementation of HORNET, each node includes a tunable transmitter and a unique fixed wavelength drop filter.  Only the traffic on a node's drop wavelength is converted into the electrical domain -- all other traffic optically bypasses that node.  Every node knows exactly what wavelength is dropped at every other node.  When a node receives a packet to insert onto HORNET, then, it is responsible for placing it onto the correct wavelength so that it reaches its destination.

Consider a fiber ring passing through several cities in a metropolitan area network.  This fiber carries a different wavelength (or channel, or color) for each city on the ring.  So, if City A wishes to send a packet to City B, it must (a) tune its transmitter to City B's wavelength and (b) find an opening on that wavelength into which to insert the packet.  Requirement (a) is achieved with a special laser that is able to change wavelengths very rapidly, on the order of tens of nanoseconds.  Requirement (b) is met with a Media Access Control (MAC) protocol developed especially for HORNET.  The architecture allows all nodes to talk directly to all other nodes without complicated and expensive optical add-drop multiplexers.

Several versions of the HORNET testbed were constructed to demonstrate different features.  Our group acted more like a systems integrator - we acquired all the necessary devices and combined them together in new ways to realize the networks and protocols that we designed. While developing these protocols, we typically performed detailed network simulations to confirm proper operation.  One fundamental difference between the Sprint-funded and DARPA-funded versions of HORNET lied in the implementation of the MAC protocol.  We have developed two different sets of subsystems to provide fair access on HORNET.  Common across the two stages was the tunable transmitter subsystem and the burst-mode packet receiver, both developed at the PNRL.  Unlike traditional optical networks, HORNET does not maintain dedicated point-to-point links between two nodes - instead a wavelength carries packets from all nodes, each with their own local reference clocks.  This requires a mechanism to rapidly acquire frequency and phase on incoming packets - traditional PLLs, which operate in the 10s to 100s of microseconds timeframe are not applicable.  This represents a significant challenge, but we feel the scalability and efficiency gained with HORNET make the effort worthwhile.

Some of the latest developments on the HORNET project involved the challenge of providing guaranteed bit rates over an inherently packet-based best effort network.  With appropriate reservation protocols, we recently showed the ability to support circuit traffic over HORNET.  This enhancement, together with HORNET's architectural benefits result in a promising next generation converged network.  Funding for the HORNET project ended in December 2002.

Near the end of my stay at Stanford, my research evolved toward Access Networks and networks on a smaller scale.
Please feel free to contact me if you have additional questions or comments:  mattrogge -AT- ieee -DOT- org

Publications
Below are some publications which I have co-authored.

Conference Publications...
	Yu-Li Hsueh; Matthew S. Rogge; Wei-Tao Shaw; Jaedon Kim; L. G. Kazovsky, Spectral Shaping Line Codes for Instant Upgrade of Existing Passive Optical Networks, IEEE Optical Fiber Communications conference (OFC 2004), March, 2004.
	Matthew S. Rogge; Yu-Li Hsueh; L. G. Kazovsky, A Novel Passive Optical Network with Dynamic Wavelength Allocation, IEEE Optical Fiber Communications conference (OFC 2004), March, 2004.
	Matthew S. Rogge; Kapil V. Shrikhande; Carlo Tosetti; Hopil Bae; L. G. Kazovsky, Circuits over HORNET (CoHo) - Guaranteed Bit Rates over a Packet-based Metro Network, IEEE Globecom 2003, San Francisco, CA, December, 2003.
	S. S.-H. Yam; Matthew S. Rogge; Joseph Kim; Eric Montgomery; L. G. Kazovsky, 40Gbps/Wavelength Transmission over Multimode Fiber for Optical Backplane Applications, IASTED International Conference on Communications, Internet and Information Technologies (CIIT' 2003), Scottsdale, Arizona, November, 2003
	Matthew S. Rogge; Kapil V. Shrikhande; Hopil Bae; Carlo Tosetti; L. G. Kazovsky, Circuits over HORNET (CoHo) Demonstration: guaranteed bit rates over a packet-based network, European Conference on Optical Communications (ECOC 2003), Rimini, Italy, Th1.4.2, September, 2003.
	Fu-Tai An; Kyeong Soo Kim; Yu.-Li. Hsueh; Matthew S. Rogge; Wei-Tao Shaw; L. G. Kazovsky, "Evolution, Challenges and Enabling Technologies for Future WDM-Based Optical Access Networks," 2nd Symposium on Photonics, Networking and Computing, Cary, North Carolina, pp. 1449-1453, September, 2003.
	Fu-Tai An; Hopil Bae; Yu-Li Hsueh; Kyeong Soo Kim; Matthew S. Rogge; Leonid G. Kazovsky, A New Media Access Control Protocol Guaranteeing Fairness Among Users in Ethernet-based Passive Optical Networks, IEEE Optical Fiber Communications Conference (OFC 2003), Atlanta, Georgia, March, 2003.
	Eric S. Hu; Ian M. White; Kapil Shrikhande; Matthew S. Rogge; K. K. Y. Wong; F.-T. An; S. H. Yam; Y.-L. Hsueh; L. K. Kazovsky, Photonics Research in Optical Communications Research Laboratory (OCRL) at Stanford University, Stanford Photonics Research Center (SPRC) 2002 Annual Meeting, Stanford, CA, 63-65, September, 2002.
	Ian M. White; Matthew S. Rogge; Yu-Li Hsueh; Kapil Shrikhande; Leonid G. Kazovsky, Experimental demonstration of the HORNET survivable bi-directional ring architecture, Optical Fiber Communications Conference (OFC 2002), Anaheim, CA, WW1, March, 2002.
	Leonid. G. Kazovsky; Ian. M. White; Kapil Shrikhande; Matthew S. Rogge, High Capacity Metropolitan Area Networks for the Next Generation Internet, Asilomar Conference on Signals and Systems, Monterey, CA, MA1b-1, November, 2001.
	Kapil Shrikhande; Ian M. White; Matthew S. Rogge; F-T. An; E. S. Hu; S. S-H. Yam; Leonid G. Kazovsky, Performance Demonstration of a Fast-Tunable Transmitter and Burst-Mode Packet Receiver for HORNET, Optical Fiber Communications conference, Anaheim, CA, ThG2-1, March, 2001.
	Leonid G. Kazovsky; Kapil Shrikhande; Ian M. White; Matthew S. Rogge; D. Wonglumsom, Optical Metropolitan Area Networks, Optical Fiber Communication conference, Anaheim, CA, WU1-1, March, 2001.
	Ian M. White; Kapil Shrikhande; Matthew S. Rogge; S. M. Gemelos; D. Wonglumsom; G. Desa; Y. Fukashiro; Leonid G. Kazovsky, Architecture and Protocols for HORNET: A Novel Packet-over-WDM Multiple-Access MAN, Globecom '00, San Francisco, CA, 1298-1302, November, 2000.
	Kapil Shrikhande; Anand Srivatsa; Ian M. White; D. Wonglumsom; Matthew S. Rogge; S. M. Gemelos; Leonid G. Kazovsky, CSMA/CA MAC Protocols for IP-HORNET: An IP over WDM Metropolitan Area Ring Network, IEEE Globecom 2000, San Francisco, 1303-1307, November, 2000.
	Ian M. White; Yasuyuki Fukashiro; Kapil Shrikhande; D. Wonglumsom; Matthew S. Rogge; Moritz Avenarius; L. G. Kazovsky, Experimental Demonstration of a Media Access Protocol for HORNET: A WDM Multiple Access Metropolitan Area Ring Network, IEEE Optical Fiber Communications conference (OIFC 2000), Baltimore, MD, WD3, 50-52, March, 2000.
	Yasuyuki Fukashiro; Kapil Shrikhande; M. Avenarius; Matthew S. Rogge; I. M. White; D. Wonglumsom; L. G. Kazovsky, Fast and fine wavelength tuning of a GCSR laser using a digitally controlled driver, IEEE Optical Fiber Communications conference (OFC 2000), Baltimore, Maryland, WM43, 338-340, March, 2000.

Journal Publications...
	Ian M. White; Eric S. Hu; Yu-Li Hsueh; Kapil Shrikhande; Matthew S. Rogge; L. G. Kazovsky, Demonstration and System Analysis of the HORNET Architecture, IEEE Journal of Lightwave Technology, December, 2003.
	Ian M. White; Matthew S. Rogge; K. Shrikhande; L. Kazovsky, A Summary of the HORNET Project: A Next-Generation Metropolitan Area Network, IEEE Journal on Selected Areas in Communications, 21, No. 9, November, 2003.
	Ian M White; Matthew S Rogge; Kapil Shrikhande; Leonid G Kazovsky, Design of a control-channel-based media-access-control protocol for HORNET, Journal of Optical Networking, Vol. 1, pp.460-473, December, 2002.
	D. Wonglumsom; I. M. White; K. Shrikhande; Matthew S. Rogge; S. M. Gemelos; F-T. An; Y. Fukashiro; M. Avenarius; L. G. Kazovsky, Experimental Demonstration of an Access Point for HORNET - A Packet-Over-WDM Multiple-Access MAN, IEEE Journal of Lightwave Technology, Vol. 18, pp.1709-1717, December, 2000.
	K. Shrikhande; I. M. White; D. Wonglumsom; S. M. Gemelos; Matthew S. Rogge; Y. Fukashiro; M. Avenarius; L. G. Kazovsky, HORNET: A Packet-Over-WDM Multiple Access Metropolitan Area Ring Network, IEEE Journal on Selected Areas in Communications, Vol. 18, pp.2004-2016, October, 2000.
	I. M. White; Matthew S. Rogge; K. Shrikhande; Y. Fukashiro; D. Wonglumsom; F-T. An; L. G. Kazovsky, Experimental Demonstration of a Novel Media Access Protocol for HORNET: A Packet-Over-WDM Multiple Access MAN Ring, IEEE Photonics Technology Letters, Vol. 12, pp.1264-1266, September, 2000.
	I. M. White; D. Wonglumsom; K. Shrikhande; S. M. Gemelos; Matthew S. Rogge; L. G. Kazovsky, The Architecture of HORNET: A Packet-Over-WDM Multiple-Access Optical Metropolitan Area Ring Network, Computer and Telecommunications Networks Journal, Vol. 32, pp.587-598, May, 2000.