資料7-DCommission D (Electronics and Photonics) Activity Report
March 2011-June 2011
June 30, 2011
Tadao Nagatsuma1) Commission Activities
National reports has been submitted from committee members with 11 selected topics;
Metamaterials, Quantum Cascade Lasers, Applications of THz Quantum Cascade Lasers, Nonlinear
Optical Waveguide for THz Tomography, Photonic Millimeter-Wave Technology, Plasmonic Device
Technology for Emission and Detection of THz Radiation, Integrated Josephson Voltage Standard
Technology, High Capacity Optical Fiber Transmission Systems, Radio-on-Fiber Technologies for
Heterogeneous Wireless Services, Broadband Access Networks with Wired and WirelessIntegration/Convergence, Body Area Network.

2) Domestic activities related to areas covered by Commission D
Technical study group on Microwave Photonics (IEICE):
1st Meeting: April 28, 2011 at Kikaki-shiko Kakikan (Tokyo), “Future and prospect of Microwave
photonics (MWP)”
The MWP technical group was promoted to the permanent group because of its steady activity
over 14 years. The first meeting is the memorial one, and six invited papers were presented,
which include “Latest trends of MWP technologies” (Prof. Tsukamoto, Osaka University), “RoFsystem for dual W-CDMA and LTE systems” (Dr. Fuke, NTT Docomo), “The future of cloudcomputing” (Dr. Matsuzawa, NTT), “Trends in photonic access technologies” (Dr. Yoshimoto,NTT),“Trendsofhigh-speedandhigh-density

siliconphotonics

devicesforphotonics-electronics conversion system” (Dr. Nakamura, NEC), and “Business chance extension
for BOP through banalisation of wireless infrastructures” (Prof. Nakano, Kwansei Gakuin
University ).

Industry-academia joint seminar on future prospects of terahertz technology andultra-broadband communications:
June 27, 2011 at Osaka University
Kinki Bureau of Telecommunications (Ministry of Internal Affairs and Communications) andJapan Terahertz Technology Forum jointly organized a workshop on the above theme. Invitedlectures were “Latest trends of terahertz technologies” (Prof. Tani, Fukui University), “Nextgeneration mobile communications” (Dr. Abeta, NTT Docomo), “Summary of study group report1

on the applications of terahertz waves to telecommunications” (Prof. Nagatsuma, OsakaUniversity), “Impact of terahertz wireless communications on Life and Green” (Dr. Hosoe,Konica Minolta Tech. Center, and Prof. Kado, Kyoto Institute of Technology), and “Recenttrends of high-frequency electronics and research strategy” (Dr. Hosako, NICT).
1G10 G

100 G

1T10 T

100 T

1PFrequency(Hz)

Microwave Millimeter

Infraredlight

THz wave‐wave

VisiblelightWavelength

30 cm

3 cm

3 mm

300 m

30 m

3 m

300 nmWave
number(cm‐1)

0.033

0.33

3.3

33

330

3300

33000

Photonenergy(eV)

4x10‐60.04x10‐3

0.4x10‐3

4x10‐3

0.04

0.4

4

0.05

0.5

550

500

5000

50000

Temperature(K)

Fig. 1 Definition of THz waves.

3) International activities related to areas covered by Commission D
Asia-Pacific Telecommunity (APT), the Eighteenth APT Standardization Program Forum(ASTAP-18), 23-26 May, 2011, Bangkok, Thailand:
In the Millimeter-wave Communications System (MMCS) Study Group (SG), following issues
were discussed; i) Report on 80-GHz high speed data link, ii) Report on terahertz
communication systems, iii) Report on RoF MIMO, iv) Report on millimeter-wave RoF.

Table1. Summary of recent activities on wireless communications at over 100 GHz
Technology

Bit rate

Application

Affiliation

MMIC(direct det.)

10 Gbit/s

6ch HDTVNTTMMIC

MMIC(direct det.)

10 Gbit/s

5 kmwith FEC

NTT200 GHzPhotonics‐
based

Disc. comp.
(heterodyne det.)

1 Gbit/s

NAIEMN(France)

220 GHz

MMIC

MMIC

~100 Mbit/s

Digital TV

250 GHz

Photonics‐
based

Disc. comp.
(direct det.)

8 Gbit/s

NA

Frequency

Tx

Rx

120 GHz

Photonics‐
based

120 GHz

300 GHz

Photonics‐
based
Discretecomponents

300 GHzResonant‐
Tunneling Diode300‐400 GHz

Disc. comp.
~20 Gbit/s(direct det.)
Disc. comp.
~100 Mbit/s(heterodyne det.)
Disc. comp.
1.5 Gbit/s(direct det.)

2

NA
Analog /Digital TV
HDTV

Fraunhofer
IAF
NTT
Osaka‐U
Osaka‐UNTT
TU Braun‐schweig
Rohm
Osaka‐U