2000 Events

Novemeber 28, 2000: "Electrical aggregation of Optical Networks" by Sunil Tomar, Cyras Systems, Inc.

Abstract: Electrical Aggregation of Optical Networks. Fiber is being laid out very aggressively creating peta-bytes of physical optical transport capacity in the metro, core and long-haul networks. The key question to answer is how will the existing copper infrastructure in the local loop carry out increasing data-dominated traffic. The answer is electrical aggregation to feed the optical metro transport network. The current metro transport networks are dominated by Synchronous Optical Transport (SONET) rings. They provide the self-healing capability when a fiber cut happens. An efficient utilization of the SONET is required.

Bio: Mr. Tomar, a co-founder of Cyras, has been Vice President of Engineering since July 2000 and served as Vice President of Hardware Engineering from inception until July 2000. Prior to co-founding Cyras, Mr. Tomar served as Design Manager at Fiberlane Communications (Cerent) from June 1997 to July 1998. Prior to Cerent, Mr. Tomar formed TomarIC, a firm specializing in providing ASICs and hardware sub-systems to communications companies. Mr. Tomar served as Manager/Senior Design Engineer at LSI Logic Corp. from April 1992 to January 1996. Mr. Tomar has also served in various capacities at Integrated Device Technology, AVX Corporation and Vadilal. Mr. Tomar holds an M.S. in Engineering from San Jose State University, an M.B.A. from Sydneham College and a B.S. in Physics from Gujarat University.


October 24, 2000: "Tripping the Light Fantastic" by Prof. Gareth Williams, SJSU

Abstract: Welsh-born University Professor, Impresario, and Optics Magician, Dr. Gareth Williams, will present highlights of his Lively Lucid Luminescent Logical Lustrous Laser Light Lab Kit. This kit is being used across the land to amaze the public into believing that optics technology is easy to understand, important to our society and maybe even fun.

Our IEEE LEOS Santa Clara Valley Chapter has just purchased one of these kits and will be using it as our contribution to the National Engineers Week education outreach program Discover E. We will also be using this kit to show our fellow engineers how a job in optics is better than a job in dot com IT. (The secret is that Microsoft does not produce any releases of optics physics, ...yet).

Do you know how optics is used to make smart structures in bridges and aeroplanes? Can you explain to your children and parents what you do? Do they understand you? Do they even listen to you? Do you believe in the magic of your optics profession but still have difficulty performing the tricks to impress your friends? Brush up your personal performing skills. Trip the light fantastic. Come watch Gareth the Great Optics Magician show you how it is done.

Bio: Dr. Gareth T. Williams is Professor and Director of LASE Project in Department of Physics at San Jose State University. He is President of Laser LightLab, Inc.


September 26, 2000: "Tunable lasers for dynamic WDM networks" by Daniel Renner, Agility Communications

Abstract: The availability of widely tunable semiconductor lasers has opened up an enormous range of opportunities for new fiber-optic wavelength division multiplex (WDM) networks. These new network architectures significantly enhance the capacity of communication systems and will be deployed both in metro distribution and in long-haul applications. This presentation will focus on the technology of tunable semiconductor lasers, their principles of operation and performance parameters: tuning range, output power, wavelength stability and control. At the same time, we will discuss the application of these devices to various WDM fiber-optic network configurations.

Bio: Daniel Renner is Vice-President of Engineering at Agility Communications. He has over 20 years of experience in opto-electronic product development at start-up, medium size and multinational corporations. During his tenure as Vice-President of Engineering at Ortel Corporation the company's revenue grew tenfold, fueled by new products. Earlier, at Rockwell International, Daniel established the company's opto-electronic product development and manufacturing capability. Daniel started his career in England, at STL Ltd., where he developed advanced components for fiber-optic communications. He earned a Ph.D degree from the University of Cambridge. Daniel is active in the IEEE and served as Associate Editor of the IEEE Journal of Quantum Electronics from 1990 to 1995.


June 27, 2000: "Why Wall Street Loves the Light" by Charles Willhoit, J.P. Morgan

Abstract: Using light to transmit communications signals is quickly becoming the accepted norm for creating the fastest, most flexible, cost effective networks. As bandwidth becomes a commodity, carriers must look for ways to provide bandwidth at a cheaper cost while creating new revenue generating opportunities. Optics serves both purposes. The growth in optical networking equipment is astounding, expected to reach as high as $150 billion by 2004 according to many in the industry. But the guts of optical networking equipment is being manufactured more and more by merchant optical components companies.

We believe that the optical components market is one of the best investable markets in all of communications. Companies like JDS Uniphase, Corning, and SDL are all arms merchants that sell components, modules, and subsystems into optical networking equipment companies. This arms merchant approach should translate into success no matter which equipment suppliers come out ahead in the end - as long as optical networking gear is deployed, diversified merchant optical components suppliers should win. We believe there are three major trends driving growth in the optical components market - 1) the enormous demand for deploying optical networks,, 2) the trend for equipment suppliers to outsource more and more hardware, and 3) the trend to supply more integrate optical modules and subsystems, moving towards making the entire insides of a box.

Bio: Mr. Willhoit heads equity research coverage of the optics sector. Charlie joined J.P. Morgan in 1995, and is the senior industry analyst covering the communications components industry. Prior to his current role, Charlie spent three years as an equity analyst working with Bill Rabin, the #1 ranked II analyst in the data networking industry. Charlie graduated from Boston College with a B.A. in Economics. Charlie co-hosts J.P. Morgan's prestigious Communications Equipment Conference, author's the weekly "Thinking Inside the Box" piece, and speaks at numerous industry related events every year.


May 23, 2000: "Micro-Opto-Electro-Mechanical Systems (MOEMS)" by Prof. Ming Wu, UCLA

Abstract: The micromachining, or MicroElectroMechanical Systems (MEMS), technology has opened up many new opportunities for optical and optoelectronic systems. Movable structures, microactuators, and micro-optical elements can now be monolithically integrated on the same substrate using batch processing technologies. Many new functional devices are enabled by the MEMS technology. It has already produced a large impact in several industries, including display and telecommunications. For example, optical switches with low insertion loss and low crosstalk have been reported by several research groups. Portable projection display with XGA resolution is now commercially available, thanks to the MEMS technology. MEMS is also the key enabling technology for many wavelength-division-multiplexed (WDM) components such as add-drop multiplexers, optical crossconnects (particularly those with large port count), tunable laser source and detectors. In this talk, we will review the state of the art of Optical MEMS technology, and describe some of our own research work at UCLA.

Bio: Ming C. Wu received his M.S. and Ph.D. degrees in Electrical Engineering from the University of California, Berkley in 1985 and 1988, respectively. From 1988 to 1992, he was Member of Technical Staff in AT&T Bell Laboratories, Murray Hill. He joined the faculty of Electrical Engineering Department of UCLA in 1993, and is currently Professor. His current research interests include micromachined micro-optics (Optical MEMS), and high-speed optoelectronics. Dr. Wu is the Director of the ONR MURI Center on RF Photonics. He was General Co-Chair of the IEEE LEOS Summer Topical Meetings in 1995 (RF Optoelectronics), 1996 and 1998 (Optical MEMS), and Program Committee Chair of the 1997 MOEMS (Micro Opto Electro Mechanical Systems) Conference. He received the Packard Foundation Fellowship in 1992, and the GOMAC Meritorious Conference Paper Award in 1994. He has published over 250 scientific papers and holds 8 U.S. patents. Dr. Wu is a member of IEEE, American Physical Society, Optical Society of America, URSI, and Eta Kappa Nu.


April 25, 2000: "A New Approach to Metropolitan Optical Networking" by Dr. Norm Swenson, Kestral Solutions

Abstract: Metropolitan telecommunication networks are characterized by densely populated areas and a large number of central offices, short distances between these interconnecting central offices (typically less than 40 km), and lower data rates between network elements than long distance networks (typically less than 2.5 Gbps). In metropolitan networks, traffic patterns change frequently and require dynamic interconnections at these numerous central offices. Capacity constraints in metropolitan fiber networks are becoming frequent and common. Absent the installation of new fiber, metropolitan service provides currently turn to one of two forms of optical multiplexing to increase network capacity. These two methods are dense wavelength division multiplexing (DWDM) and time division multiplexing (TDM). This presentation introduces a third alternative, referred to as optical frequency division multiplexing (Optical FDM). This discussion will describe each multiplexing technology and compare the relative merits over a broad range of factors, using by way of example the efficient transport of IP data in a telecommunications network.

Bio: Dr. Norman Swenson is the Vice President of Research and Development at Kestrel Solutions, Inc. Prior to joining Kestrel, he was Program Manager of Advanced Technology Programs at Lockheed Martin Corporation's Western Development Laboratories. He also served as Chief Engineer for Advanced Communication Systems at Lockheed Martin and established their Advanced Communications Group. Dr. Swenson received a BA in Physics and Computer Science from UC Berkeley, an MSEE in Electrical Engineering from the University of Southern California, and a Ph.D. in Electrical Engineering from Stanford University.


March 14, 2000: "Noise and Feedback Phenomena in Laser Diodes" by Prof. Klaus Petermann, IEEE Distinguished Lecturer, Technical University of Berlin

Abstract: The understanding of external optical feedback phenomena is of vital importance for designing fiber optic transmission systems, optical sensors with laser diodes etc. The lecture will address the following topics:

Bio: Klaus Petermann was born in 1951. He received the Dipl.-Ing. degree in 1974 and the Dr.-Ing. Degree (PhD) in 1976. From 1977 to 1983 he was in industry at AEG-Telefunken, research institute Ulm, Germany. His main achievements with respect to semiconductor lasers during that time included several studies on modulation and noise characteristics and the proposal for a spontaneous emission enhancement factor (sometimes called the Petermann K-factor). Since 1983 he is a full professor at the Technische Universitat Berlin, where, in the field of laser diodes, he did make several contributions on feedback phenomena in semiconductor lasers. He did present several invited talks on this subject. Presently, he is working on system modelling, on integrated optics devices, on semiconductor laser amplifiers for optical signal processing and on VCSELs for local area networks. He did serve several times on the programme committee of the IEEE semiconductor laser conference. He is a member of the technical programme committee of ECOC (European conference on optical communication) and he will be the programme chair of ECOC 2000, to be held in Munich, Germany. In 1993 he was awarded with the the Leibniz-award from the Deutsche Forschungsgemeinschaft. Dr. Petermann is a senior member of the IEEE and a member of the Optical Society of America. He is member of the board of the Verein der Elektrotechnik (VDE) and a member of the Berlin-Brandenburg academy of science.


February 22, 2000: "Trends in the Semiconductor Industry" by Nanjunda Shastry and Ben Yu, 3Com

Abstract: Deep sub-micron processes have increased transistor densities to the point that a "Silicon Gap" has been created, there is more available real estate on a chip than there is IP to fill it up. It is highly unlikely that any one company will have all the IP to create a complex chip in house, whether they are semiconductor or system companies.

Combined with the emergence of silicon foundries as key forces in the market, two new classes of companies are emerging fabless semi suppliers focussed on advanced technologies and chipless companies developing reusable IP cores.


February 16, 2000: "Optical Photoactivator and Visudyne Therapy for the Treatment of Age-Related Macular Degeneration (AMD)" by Dennis Dowell, Coherent Medical Group

Abstract: Age related macular degeneration, or AMD, is the leading cause of blindness among adults over the age of 50 in the western world. Everyone in some way is, or will be affected by AMD. It may be through a parent, brother, sister, aunt or uncle. It may well be you. Statistics indicate the odds are stacked against us. Experts agree, the number of people diagnosed with AMD in the next 25 years will triple. Approximately 10% of people aged over 65 years in the Western World already have early-stage AMD.

AMD is a degenerative condition of the macula, the part of the back of the eye that provides clear, central vision. Central vision is needed every day for activities such as reading and driving. There are two forms of AMD: wet (neovascularization) and dry (atrophic). Accounting for approximately 85% of all AMD cases, the dry form is characterized by yellow deposits in the retina called )"drusen)" and a thinning of the macular material. Dry AMD develops slowly (over a number of years) and usually only causes mild vision loss with the primary symptom being a dimming of vision when reading. The wet form of AMD (neovascular) is caused by the growth of abnormal blood vessels across the macula. These abnormal vessels leak fluid and blood into the tissue at the back of the eye, causing impairment of central vision. While wet AMD accounts for 15% of all cases, it is responsible for 90% of the severe vision loss associated with AMD. The current primary treatment option for wet AMD, laser photocoagulation, is available for only a few and outcomes for the patient are less than positive. Only 20% are eligible. Photocoagulation is limited because it destroys healthy retinal tissue along with tissue affected by AMD and patients pay the price of an immediate loss of visual acuity following treatment in return for slower disease progression. In addition, half of patients treated with laser photocoagulation suffer from recurrences.

Visudyne Therapy involves the use of a light-activated compound called verteporfin combined with a non-thermal laser to produce a therapeutic effect. The non-thermal laser used is the new Coherent Opal Photoactivator. Treatment consists of a two-step process beginning with administration of the drug, or "photosensitizer", by intravenous injection. While circulating in the bloodstream, the drug attaches to molecules called lipoproteins. Because neovascular cells require a greater amount of lipoproteins than non-dividing cells, the drug is delivered more quickly and in higher concentrations to these types of cells. It is then activated with a pre-calculated dose of light at 689nm. The activated drug subsequently causes the conversion of normal oxygen found in tissue to a highly energized form called "singlet oxygen". The singlet oxygen, in turn, causes cell death by disrupting normal cellular functions. Neither the drug nor the light exerts any effect until combined. Because the light is shone directly at the targeted tissue and the drug accumulates preferentially in these cells, photodynamic therapy results in a highly selective treatment.

Bio: Dennis Dowell, MFA, MS has been working in Ophthalmology since 1983 when he began doing Ophthalmic photographic research at USC Estelle Doheney Eye Foundation. After several conceptual product designs, he moved into product design and management for Nidek Incorporated (Fremont Ca.). He then moved to Humphrey Systems (Dublin Ca.) as Marketing Manager. He is now the the Marketing Manager of the Ophthalmic business unit at Coherent Medical Group.


January 25, 2000: "Fiber-Optic Module Development at Agilent Technologies (formerly Hewlett Packard) and site tour of Agilent" by Dr. Robert Herrick, Agilent Technologies

Abstract: The expansion of internet traffic, as well as local-area and storage-area networks, are driving explosive growth in data communications. Fiber optics is useful in handling high-speed data interchange, and a critical component is the fiber optic transmitter / receiver module. Such modules are made by Agilent Technologies (formerly part of Hewlett-Packard).

We will present an overview of data communications, and how fiber optics is superior to competing non-optical technologies (e.g. coax cables) for such applications. We will discuss examples of how fiber-optic transceivers are used, and then discuss how such transceivers are made. The laser (VCSEL) and LED sources will be given special attention in the presentation. Finally, a brief tour of the facility will be given, with a focus on the manufacturing and testing of the laser sources.

Bio: Dr. Herrick received the M.S. in Electrical Engineering from the University of Illinois at Urbana-Champaign in 1987. He worked for the McDonnell Douglas Electronic System Company from 1987-1992, working on the design and fabrication of high-power semiconductor laser arrays. From 1992-1997, he was a research assistant at the University of California, Santa Barbara, where he studied the causes of VCSEL degradation. Since receiving the Ph.D. in Electrical Engineering in Sept. 1997, Dr. Herrick has been with Agilent Technologies (formerly Hewlett Packard) in San Jose, CA, where his work includes responsibilities for laser and LED reliability. He has also been responsible for the reliability and qualification of fiber optic transceiver modules.