IEEE Photonics Society Distinguished Lecturer Program
Advanced semiconductor lasers:Ultra-low operating energy and heterogeneous integration with Si photonics devices
Shinji Matsuo, NTT Photonics Laboratories, Japan
Abstract: The electrical power consumed in data transmission systems is now hampering efforts to further increase the speed and capacity at various scales, ranging from data centers to microprocessors. Optical interconnects employing an ultralow energy directly modulated lasers will play a key role in reducing the power consumption. Since a laserâ€™s operating energy is proportional to the size of its active volume, developing high-performance lasers with a small cavity is important. For this purpose, we have developed membrane DFB and photonic crystal (PhC) lasers, in which active regions are buried with InP layer. Thanks to the reduction of cavity size and the increase in optical confinement factor, we have achieved extremely small operating energy and demonstrated 4.4-fJ/bit operating energy by employing wavelength-scale PhC cavity. Reduction of the cost is also important issue because huge number of transmitters are required for short distance optical links. For this purpose, Si photonics technology is expected to be a potential solution because it can provide large-scale phonic integrated circuits (PICs), which can reduce the assembly cost compared with transmitters constructed by discrete devices. Therefore, heterogeneous integration of III-V compound semiconductors and Si has attracted much attention. For fabricating these devices, we have developed wafer-scale fabrication procedure that employs regrowth of III-V compound semiconductors on directly bonded thin InP template on SiO2/Si substrate. A key to realize high-quality epitaxial layer is total thickness, which must be below the critical thickness, typically 430 nm. Thus, membrane structure is quite suitable for heterogeneous integration. I will talk about our recent progress, focusing on ultralow-powerconsumption directly modulated lasers and their photonic integrated circuit. I will also describe progress in heterogeneous integration of these lasers and Si photonics devices.
Bio: Dr. Matsuo received a B.E. and M.E. degrees in electrical engineering from Hiroshima University, Hiroshima, Japan, in 1986 and 1988, and the Ph.D. degree in electronics and applied physics from Tokyo Institute of Technology, Tokyo, Japan, in 2008. In 1988, he joined NTT Optoelectronics Laboratories, Atsugi, where he was engaged in research on photonic functional devices using MQW-pin modulators and VCSELs. In 1997, he researched optical networks using WDM technologies at NTT Network Innovation Laboratories, Yokosuka. Since 2000, he has been researching InP-based photonic integrated circuits including fast tunable lasers and photonic crystal lasers at NTT Photonics Laboratories, Atsugi. Dr. Matsuo is a member of the IEEE Photonics Society, Japan Society of Applied Physics and the Institute of Electronics, Information and Communication Engineers (IEICE) of Japan.
On behalf of the conference organizing committee,
we invite you to the virtual Photonics North Conference on May 26-28,
2020.Â In the midst of a global crisis,
we look forward to meeting with all of you, our colleagues, as we carry on with
the work of advancing optical science and engineering. Join us for outstanding
plenary talks from inspirational thought leaders. Join us for the very best
work from respected and established researchers. Join us for talks from
emerging researchers, presenting what is surely the opening work of brilliant,
Photonics and optics are finally seeing widespread adoption and significant growth into new markets. Photonic devices are being applied to sensing, communications, and even quantum computing. High speed fiber optics and highly integrated subsystems are essential to the rollout of 5G systems. There has never been a better time for research, development, and training in photonics and Photonics North is essential for developing and promoting the ecosystem.
President andÂ CEO, CMC MicrosystemsÂ Â Â Â
P. Scott Carney
The Institute of Optics, University of Rochesterâ€‹Â Â Â Â
In this time of social distancing, we are pleased to announce that all the team members of IEEE YP and WIE Ottawa Sections are fully committed to providing online interaction and support to our community! In partnership with Professional Engineers Ontario, we present an online talk in “Clarifying the Path to Becoming a Professional Engineer.”
If you are an engineering undergraduate or post-graduate student, or a recent graduate starting out your engineering career, then this seminar might be for you. In it you will learn:
- What is PEO?
- What engineering experience is PEO looking for once I graduate?
- I have international engineering education and experience; how is that evaluated by PEO?
- How is my engineering experience evaluated by PEO?
- How do I prepare my Experience Record?
- What is the PPE?
- What is the EIT Program and the Student Membership Program?
The emphasis of this webinar will be on the P. Eng. licensure process – what PEO is looking for. The webinar will focus on how engineering experience is evaluated and how you can facilitate the process. Learn the dos and donâ€™ts of preparing your licensing application for evaluation.
To participate, you will require: internet connection to view the webinar, phone access to dial into the conference for audio.
We look forward to speaking with you!
Speaker:Â Â Â Â Â Â Â Â DrÂ : Marin Soljacic, MIT
Date:Â Â Â Â Â Â Â Â Â Â Â Wednesday
Aug 12th, 2020
Time: Â Â Â Â Â Â Â Â Â Â Â 12:00
noon to 13:00
Title of the talk: Â Â Â Photonics:
a great testing-ground to develop new AI algorithms for science
Date: October 7th 2020
Time: 5:00 – 6:30 pm EDT
Venue: Online – http://bit.ly/DJKYPAAS
Event Contact: Daniel J King (firstname.lastname@example.org)
IEEE Ottawa Young Professional Affinity Group presents an Antenna Arrays Seminar by MASc. Daniel J. King. Feel free to register and join us in this exciting event. Some of the topics covered are:
- A basic introduction to the theory and practice of antenna arrays;
- Information about current research opportunities and applications;
- Specific examples in mm-Wave applications!
Register today to this virtual event!