Friday, April 26, 2013

Seminar: "Photodetectors for High-Speed and High-Power Applications" by Dr. Andreas Beling / 5.10.13 / 11:00am-12:00pm / CREOL Room 102

"Photodetectors for High-Speed and High-Power Applications" by Dr. Andreas Beling
Friday, May 10, 2013 from 11:00 AM to 12:00 PM
CREOL Room 102

Dr. Andreas Beling
Research Scientist
Department of Electrical & Computer Engineering
University of Virginia


Photodetectors continue to play a crucial role in fiber optic communication systems and microwave photonics as applications demand higher bandwidths, larger power levels, and increased spectral efficiencies. As conventional top-illuminated p-i-n photodiodes cannot achieve the requisite bandwidth-efficiency products and output power levels the move to waveguide photodiodes, photodiode arrays, and novel epitaxial layer structures is paving the way for the development of very high-speed, high-power photodetectors suitable for photonic integration. Incorporated into photonic integrated circuits (PICs), waveguide photodetectors enable more complex receiver architectures for the detection of advanced modulation formats guaranteeing highest performance at the highest packing density. Since PICs combine optical, optoelectronic and eventually electronic functionalities on a single chip, they have the potential to meet future capacity requirements and enable novel applications spanning from optoelectronic oscillators to optical interconnects.
     In my talk, I present state-of-the-art 145 GHz-waveguide photodiodes and high-power traveling wave photodetectors that have been successfully operated at bitrates as high as 160 Gbit/s. I discuss the development of an integrated dual-polarization coherent receiver that has become a key component in today’s 100 Gbit/s and emerging 400 Gbit/s fiber optic links. I cover novel device structures and photodiode arrays that enabled photonic generation of highly linear microwave signals at record-high output power levels. This includes heterogeneously integrated InP-based photodiodes on silicon that achieved the highest saturation current-bandwidth products on a silicon photonics platform to date. Finally, I discuss future directions in photodetector research and emerging applications.

Andreas Beling received his Ph.D. in electrical engineering from Technical University Berlin, Germany, in 2006.
     From 2001 to 2006 he was a staff scientist in the photonics division at the Heinrich-Hertz-Institut für Nachrichtentechnik (HHI) in Berlin. At HHI, he was engaged in the design and characterization of high-speed optoelectronic circuits. From 2006 to 2008 he was a Research Associate in Prof. Joe C. Campbell’s group at the University of Virginia. At UVa he worked on high-power high-linearity photodiodes. He joined u2t Photonics AG in Berlin in 2008 where he worked as a project manager on the development of new optoelectronic receivers for 40 and 100 Gbit/s fiber optic systems.
     He returned to UVa in late 2010 where he is currently a Research Scientist in the Department of Electrical and Computer Engineering. His research interests include photonic integrated circuits and high-speed optoelectronic devices for fiber optic communication systems and microwave photonics.
     Andreas Beling has authored or co-authored more than 85 technical papers, two patents, and two book chapters. He was a member of the technical program committee of the Optical Fiber Communication (OFC) Conference from 2010 to 2012. He served as a Technical Program Subcommittee Chair for Subcommittee 8 (Optoelectronic Devices) at OFC this year.

For more information:
Dr. Winston V. Schoenfeld
Associate Professor of Optics & The Florida Solar Energy Center (FSEC)
(407) 823-6898
winston @ creol. ucf.  edu

Thursday, April 25, 2013

UAS Industry Support requested

FLDC and Unmanned Aircraft System (UAS) businesses in Florida are preparing to drop a press release urging Governor Scott to publicly lead the state's efforts to be designated an FAA test site.

If your business in anyway supports or is part of the UAS industry, and you'd like to "sign on" to the press release, please reply to this email with your company name and city of operation(s).

You may view the draft of the release here (copy and paste it into your browser address bar):

Please indicate your interest in signing on to the release and provide the information requested above NLT COB this Friday, April 26.

Tuesday, April 23, 2013

LightPath Technologies Exhibiting at SPIE Defense, Security + Sensing 2013

LightPath Logo

LightPath Technologies Exhibiting at SPIE Defense, Security + Sensing 2013

LightPath Expert to Present on a Practical Approach to LWIR Wafer-based Optics for Thermal Imaging Systems

For Immediate Release
ORLANDO, FL - (PRNewswire – April 23, 2013) - LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath”, the “Company” or “we”), a global manufacturer, distributor and integrator of patented optical components and high-level assemblies, today announced it will exhibit at SPIE Defense, Security + Sensing, 2013's most important scientific conferences on optics, imaging, and sensing.  The show takes place April 29-May 3 at the Baltimore Convention Center in Baltimore, MD.
LightPath invites you to visit them at Booth #1451 and be among the first to see LightPath’s new:
  • Thermal imaging assemblies with diamond-like coatings
  • Green lenses: Molded glass aspheric optics optimized to provide high transmission and improved performance for green diode lasers
  • Connectorized collimators: Product line expanded to include 405nm and 633nm wavelengths, new choices for a variety of beam sizes, and a more rugged, improved glass optic
  • Long Wave InfraRed (LWIR) collimating optics: New long wavelength collimating lenses designed to collimate quantum cascade lasers
On May 1st, at 9:40 AM, Ray J. Pini will be presenting a paper entitled "A Practical Approach to LWIR Wafer-based Optics for Thermal Imaging Systems." The paper will compare a typical high volume thermal imaging design manufactured from discrete lens elements to a similar design optimized for manufacture through a wafer-based approach. The presentation will explore both performance and cost trade-offs, as well as review the manufacturability of all designs using LightPath’s molding process.
Jim Gaynor, LightPath CEO, stated, “We are looking forward to seeing OEMs, partners, and prospects at this important industry event. We are particularly looking forward to the opportunity to have Ray Pini discuss the benefits and value of LightPath’s wafer-based molding process for thermal imaging systems.”
DSS is considered the industry's leading meeting for scientists, researchers and engineers from industry, military, government agencies, and academia throughout the world. The event features 55 co-located technical conferences, more than 500 exhibiting companies and agencies and attracts more than 6,500 top scientists, engineers and product developers.
About LightPath Technologies
LightPath provides optics and photonics solutions for the industrial, defense, telecommunications, testing and measurement, and medical industries. LightPath designs, manufactures, and distributes optical and infrared components including molded glass aspheric lenses and assemblies, infrared lenses and thermal imaging assemblies, fused fiber collimators, and gradient index GRADIUM® lenses. LightPath also offers custom optical assemblies, including full engineering design support.  For more information, visit
This news release includes statements that constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including statements regarding our ability to expand our presence in certain markets, future sales growth, continuing reductions in cash usage and implementation of new distribution channels. This information may involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, factors detailed by LightPath Technologies, Inc. in its public filings with the Securities and Exchange Commission. Except as required under the federal securities laws and the rules and regulations of the Securities and Exchange Commission, we do not have any intention or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

Monday, April 8, 2013

Opportunities For The Application Of Atomic-Scale Simulation To Elucidate Space-Weathering Processes

Florida Space Institute Seminar Announcement

Speaker:   Patrick Schelling
Affiliation: Physics, UCF
Day and Date: Wednesday, April 10, 2013
Time: 11:00 - 12:00

Location: Research Park
12354 Research Parkway
Partnership 1 Bldg. Suite 209
Orlando, FL 32826

Opportunities For The Application Of Atomic-Scale Simulation To Elucidate Space-Weathering Processes

The mechanisms for space weathering of minerals include bombardment by solar wind particles, cosmic rays, and micrometeorites. As a result of space weathering, mineral surfaces evolve strongly away from that of the parent mineral. This has important impacts on the spectral and chemical properties of objects in the solar system, including lunar and asteroidal regolith. For example, one effect of space weathering is the strong reduction of silicate minerals and the subsequent production of nanophase elemental Fe within the silicate matrix. In this talk, ongoing work to understand space weathering starting from atomic-scale modeling will be presented. The fundamental process of radiation damage involves the production of Frenkel defects which subsequently evolve to create defect clusters and dislocations. In a strongly-reduced silicate matrix, interstitial Fe clusters may grow into nanophase Fe. Plans to explore the chemical reactivity of space-weathered materials will also be described. For example, implanted hydrogen trapped at cation vacancy sites may be a mechanism for the production of water molecules. It has been speculated for some time that water molecules are produced on the lunar surface due to proton bombardment, but the details of this process are not understood. It is also known that Fe is strongly catalytic for the production of hydrocarbons, which might be an interesting consequence of the production of nanophase Fe.
Many of the approaches that are employed have a long history in materials science, and are quite well developed, but have not been extensively applied to questions of interest to the planetary science community. One objective of the talk is to highlight possible opportunities for future research directions.

For further information please the click below:
Todd Bradley
Department of Physics
Phone: 407-823-0631
Email: tbradley @ physics. ucf. edu
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Monday, April 1, 2013

Michael Myhre Selected to Lead Florida SBDC Network as Interim State Director

Media Release

Release Date: April 1, 2013

Michael Myhre Selected to Lead
Florida SBDC Network as Interim State Director
FSBDCN State Office: The Florida Small Business Development Center Network (FSBDCN) is pleased to announce that Michael (Mike) Myhre has been selected to lead the FSBDCN as the Interim State Director. Myhre joined the FSBDCN in January 2011, serving as the Network's Deputy State Director. Myhre has over 20 years of business experience, dedicating his career to ensuring success for entrepreneurs and small business owners. His extensive small business knowledge and experience have been and will continue to be invaluable assets to the Network.

"For over 35 years, the Florida SBDC Network and its committed partners and professionals have been serving the complex and diverse needs of Florida's small businesses with resounding success and return to the citizens of Florida," said Myhre. "I look forward to the opportunity to continue its rich tradition as a progressive organization focused on the enrichment of Florida."

Prior to joining the FSBDCN, Myhre held the position of State Director for the Office of Entrepreneurship and Small Business Development; the State of Minnesota's lead office in entrepreneurial and small business policy development and support services, including its cornerstone program, the Minnesota SBDC program. Throughout his career, he has held various positions in the field of small business assistance, development and education.

Myhre is preceded in the position by Jerry Cartwright who retired after 24 years as State Director for the FSBDCN. Over the last 10 years under Cartwright's leadership, the Florida Network served more than 1.1 million entrepreneurs with consulting, training and information, resulting in 161,618 jobs created and retained, $7.3 billion in sales growth, $3.6 billion in contract awards, $1.3 billion in capital accessed, and 7,300 new businesses started.
About the FSBDC Network

For over 35 years, the FSBDC Network has nourished a statewide partnership between higher education and economic development organizations, dedicated to providing emerging and established business owners with management and technical assistance, enabling overall growth and increased profitability for the businesses and economic prosperity for the state. A statewide service network of 39 centers with 65 outreach locations, the FSBDC Network is funded in part through a cooperative agreement with the U.S. Small Business Administration, hosted by the University of West Florida and accredited through the national Association of SBDCs. To learn more about the FSBDC Network or to find a SBDC near you, visit or call 1.866.737.7232.

In 2011, the Florida SBDCs served approximately 38,000 entrepreneurs and small business owners through consulting, training and information, resulting in 43,856 jobs created, retained and saved; $6 billion in sales growth; $98.1 million in capital accessed; $426.2 million in government contract awards; and 1,067 new businesses started.
State Office l UWF Office of Economic Development & Engagement
11000 University Pkwy, Bldg 38 l Pensacola, FL 32514
866.737.7232 or 850.473.7800 l