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FIRST Program
Photonics-Electronics Convergence System Technology
Message from the Core Researcher The recent information explosion has
centers, including silicon-based optical
caused a further increase in the demands
interconnect technology. We believe that the
and expectations of computer performance.
PECST will show the way to a new
The PECST (Photonics and Electronics
paradigm which will bring innovations to
Convergence System Technology) was
the industry. For this purpose, strong
selected as one of the thirty FIRST projects
collaboration beyond existing organizations
in order to exceed the limitation of current
such as companies and universities is
LSI by converging photonics and electronics.
essential. I, as core researcher, together
The PECST project is carried out with a
with all our outstanding project members
total budget of 4.5 billion yen, involving the
from both academia and industry, will make
University of Tokyo, PETRA, and AIST as
upmost efforts to making the PECST a
core organizations. The goal of this project is
successful project. We hope all of you will
the demonstration of the LSI and photonics
strongly support and encourage us to
integrated systems for future of on-chip data
achieve the aims of the PECST.
Yasuhiko Arakawa, Core Researcher, PECST, Professor, The University of Tokyo
Project Organization
About FIRST The Funding Program for WorldLeading Innovative R&D on Science and Technology (FIRST program), which was planned by the Council for Science and
The Core Researcher is Professor Yasuhiko Arakawa, who heads the project. The researchers join PECST from three groups, representing Industry, Academia and Government, where PETRA represents industries, University of Tokyo represents a group of universities, and AIST represents national laboratories. Those researchers cross organizational boundaries to further research into each topic, utilizing the strengths of these different backgrounds.
Technology Policy in the Cabinet Office,
Photonics-Electronics Convergence System Technology
began in March 2010. The aim of this
Core-Researcher : Yasuhiko Arakawa (Univ. Tokyo)
program is to advance cutting-edge research projects in various fields and to strengthen Japan's international competitiveness while contributing to society and people’s welfare through the application of their results. For the program, thirty core researchers and research topics, which cover a broad area of science and technology, have
Advanced Device Technology
Photonic Integration Technology
Yasuhiko Arakawa (Univ. Tokyo)
Takahiro Nakamura ( PETRA )
Photonic K. Wada (Univ. Tokyo) Modulator
T. Usuki ( PETRA )
Photonic Wiring
K. Yamada ( PETRA ) H. Yaegashi ( PETRA ) M. Mori (AIST)
Photonic Detector
K. Wada (Univ. Tokyo) J. Fujikata ( PETRA )
Process Integration
T. Horikawa (AIST) T. Nakamura ( PETRA ) S. Noda ( Kyoto Univ. )
Light Source
Y. Arakawa (Univ. Tokyo) T. Ido ( PETRA ) M. Ishizaka ( PETRA )
Design Method. T. Nakamura ( PETRA ) Tech. Demon.
T. Baba ( Yokohama National Univ. )
been selected from ~600 proposals through strong competition. A total of 100 billion Yen is dedicated for promoting the research led by the core researchers. In addition, the FIRST Acceleration Program was additionally implemented using FY 2010 budget
Universities
N. Nishiyama ( T. I. T. ) Y. Urino ( PETRA )
4 Univs ( 5 Labs )
National Laboratories
Univ. Tokyo Kyoto Univ. Yokohama Ntl. Univ. Tokyo Inst. Tech.
Photonics, AIST Innovation Center for Advanced Nanodevices, AIST
Fujitsu Hitachi NEC NTT OKI
~20
~20
~40
Head Count
Tech. Assoc.
PETRA ( Industries ) 5 Companies
(~9.7 billion Yen) in order to strengthen the R&D activities carried out by core researchers on selected topics under the
Core Researcher & Support Organizations
FIRST Program. Outreach activities such
Core Researcher
・Yasuhiko Arakawa, Professor, The University of Tokyo
as symposiums geared to interested
Co-core Researchers
・Kazumi Wada, Professor, The University of Tokyo ・Takahiro Nakamura, Chief Manager, PETRA
members of the general public are also very much encouraged. Additional funding is also distributed for these activities.
Operational ・PETRA (Photonics Electronics Technology Research Association) Support Institution Collateral Institutions
・The University of Tokyo ・AIST (National Institute of Advanced Industrial Science and Technology)
Project Outline In the near future, current computers (more precisely, LSIs in
LSI on Photonics
computers) will encounter several
Photonic device technology
challenges such as power
Modulators / Photodetectors Optical waveguide Laser source on Silicon
minimization, operating speed acceleration, and down-sizing. The convergence between photonics and electronics will create innovative devices and systems to overcome these limitations, and open new directions for research into novel electronic phenomena in semiconductors.
System LSI technology
Size ∼1/50 Size 1 /1000
50mm
On chip data centers
Arrayed silicon nanowire waveguides
Silica-based AWG
Surface Plasmon Anntena
New concepts and structures for efficient modulation
SiGe/Ge
N-SiGe
P+−Si
Si waveguide
i−Si Box
LSI design System demonstration
Si
Si-Optical Modulator
SiGe/Ge Photo Detector
Size ∼1/10
∼2018
On chip servers
PE Integration innovative technology
Size=1
In order to realize PhotonicsElectronics convergence systems, it is necessary to not only develop innovative technologies such as silicon light emitters, but also to clear the way to market by demonstration of a system. This project promotes research and development of these innovative technologies for photonics-electronics convergence in order to realize an “On-chip data Center” – a data center integrated on a chip by 2025.
∼2025
Innovative light source Optical power
Innovative wiring technology
Light input
Activity Report 1
Activity Report 2
We demonstrated, for the first time, optical interconnects integrated with 13-channel array laser, silicon optical modulator and germanium photodetector on a single silicon substrate with 5mm×4.5mm chip size. A 5 Gbps line bit rate and 3.5 Tbps/cm2 transmission density were achieved. This technology will solve the bandwidth bottleneck among LSI chips in the future.
As on-chip light sources, quantum dot lasers have several advantages such as high temperature stability. We have demonstrated InAs/GaAs quantum dot lasers on Si substrates by means of semiconductor wafer bonding and layer transfer. Our laser emits at 1.3 μm with a threshold current density of 205 A/cm2, the lowest of any kind of laser on silicon reported to date.
Arrayed LD
Modulator array
5mm
PD array
4.5mm
Research Goal In order to overcome the limits of LSI by converging electronics and photonics technologies, the PECST will aim to mount leading-edge LSIs on ultra-dense photonic integrated circuits (10Tbps/cm2), which we call, “LSI-on-photonics-
10 G
integration circuits”. In addition, we will explore innovative photonic devices based on nanotechnology through strong collaboration between industry and academia. As a result, the PECST will contribute to develop future technologies for the photonics- electronics convergence system. In all these activities, the PECST will make clear the prospects for industrialization through technological demonstration of photonic integrated circuits, and to develop basic technologies for realizing nanotechnology based innovative systems. Above all, the PECST would like to contribute to the development of a safe, secure and comfortable society, and also contribute to the solution of environment, resource and energy issues, as well as enhance international competitiveness of industry.
1G b
bp
10 0
s/c m2
Throughput (Gbps)
1000
Gb
1T b ps /c m2
10 T
ps /c m2
ps /c m2
PECST PECST
Inter-Boards AOC etc. LUXTERA
s/c m2
Chip-to-Chip
PODAvago PETIT2 (NEC ‘10) LUXTERA
100
bp
Target
(2011)
Inter-Racks
LightWire
LAN・ WAN
PETIT(NEC‘08)
10
LightPeak (INTEL ‘10) QSFP( ‘08) SNAP12 (IBM ‘04) POP4 ( ‘05)
300pin-MSA XFP (10Gx1) (10Gx1)
1 0.01
0.1
1
1/Module Area (cm-2)
10
Research Members Core Researcher
Co-Core Researchers
Yasuhiko Arakawa
Kazumi Wada
Takahiro Nakamura
Professor, The University of Tokyo
Professor, The University of Tokyo
Chief Manager, PETRA
Key Researchers Suguru Akiyama
Toshihiko Baba
Jun-ichi Fujikata
Nobuaki Hatori
Gerhard Abstreiter
Principal Researcher, PETRA
Professor, Yokohama National University
Principal Researcher, PETRA
Principal Researcher, PETRA
Professor, Technische Universität München
Tsuyoshi Horikawa
Tatemi Ido
Masashige Ishizaka
Satoshi Iwamoto
Deputy Director, AIST
Principal Researcher, PETRA
Principal Researcher, PETRA
Associate Professor, The University of Tokyo
Makoto Miura
Masahiko Mori
Nobuhiko Nishiyama
Susumu Noda
Principal Researcher, PETRA
Associate Manager, Nanodevices, AIST
Associate Professor, Tokyo Institute of Technology
Professor, Kyoto University
Yutaka Urino
Tatsuya Usuki
Hiroki Yaegashi
Koji Yamada
Principal Researcher, PETRA
Principal Researcher, PETRA
Principal Researcher, PETRA
Principal Researcher, PETRA
John Bowers Professor, University of California, Santa Barbara
Contact ■
The University of Tokyo
Prof. Yasuhiko Arakawa Institute of Industrial Science, Ee-204 The University of Tokyo Komaba 4-6-1, Meguro-ku, Tokyo, Japan 〒153-8505 Tel: +81-3-5452-6245 Fax: +81-3-5452-6246 e-mail:
[email protected]
■
PETRA
Device Research Promotion Dept. PETRA Sumitomo Edogawa-bashi Build. 7F Sekiguchi 1-20-10, Bunkyo-ku, Tokyo 〒102-0014 Tel: +81-3-5225-2362 Fax: +81-3-5225-6435 e-mail:
[email protected]