Transcription of 12 01 fiÁ‘W - ntt.co.jp
1 NTT / .. NTT .. THz .. 30 GHz 300 GHz . mm 10 mm .. 10 cm 1 cm 1 mm 100 m 300 GHz THz . 100 m mm Hz 3 G 10 G 30 G 100 G 300 G 1T 3T. T .. Gbit/s . 75-100 115-150 220-270 370-400. dB/km . 100 1000. 10 THz . 10. 100. THz . 1 10.. Dry air H2O. H2O . 1.. Moderate rain O2 . a few mm/h O2. H2O. Fog 4 10 20 40 100 200 400 1000 GHz .. TV .. 12 NTT .. PC . I E E E. 1 .. WirelessHD . 2008 . 76 2 . GHz 60 GHz . 60 GHz GHz . DVD . HD TV . SiGe CMOS. HD .. 10GE .. x z y InP HEMT.. f M f . 0 0 0 0 M f .. EO . UTC PD. f .. NTT 13.. 70 GHz 80 GHz Mobility Transistor .. Gigabit Ethernet .. 3 5 . 6 . UTC-PD . OE . Gbit/s . 2008 . Terahertz Interest Group .. IGthz 300 GHz . 120 GHz .. 4 . THz NHK . 120 GHz . 7 . 8 10 .. THz-TDS 120 GHz 10 Gbit/s . 120 GHz TV .. NTT .. InP HEMT 120 GHz 10 Gbit/s NTT Indium Phosphide High Electron 10 GE .. GHz 2 GHz 2 GHz . AWG.. O E .. GHz PLC UTC PD . AWG .. PLC .. 14 NTT .. InP HEMT O E UTC PD PLC .. InP HEMT O E UTC PD.
2 EO .. 120 GHz . 11 . ASK . 17 GHz . 10 Gbit/s .. QPSK 16 QAM . NTT . 20 Gbit/s .. NTT 15.. Quantum Electron., , , , 2004. Gbit/s 7 120 GHz 10 Gbit/s 120 GHz NTT . 50 No. 2004 . 8 . NTT . 10 10 GbE FWA.. 2006 . 9 R. Yamaguchi, A. Hirata, T. Kosugi, H. Takahashi, N. Kukutsu,T. Nagatsuma, Y. 1 1 GbE FWA Kado, H. Ikegawa, H. Nishikawa, and T. Nakayama 10-Gbit/s MMIC Wireless Link Exceeding 800 Meters Tech. Dig. IEEE. Radio and Wireless Symposium,TH1C-3, 2008. 10 N. Kukutsu, A. Hirata, T. Kosugi, H. Takahashi, R. Yamaguchi, T. Nagatsuma, and 100 MbE Y. Kado 10-Gbit/s Wireless Link Systems FWA Using the 120-GHz Band Tech. Dig. IEEE. AP-S, June 2008. 11 . 1 10 50 km N T T . No. 2006 .. Gbit/s . 40. 35 ASK. 30 QPSK. 16 QAM. 25. GMSK. 20 120 GHz .. 15 .. 10. 5. 0. 0 5 10 15 20 GHz .. / .. 1 . 2 3 . 4 5 T. Ishibashi, N. Shimizu, S. Kodama, H. Ito, T.. Nagatsuma, and T. Furuta Uni-traveling- carrier photodiodes Tech. Dig. Ultrafast NTT.
3 Electronics and Optoelectronics, Lake Tahoe, . CA, USA, pp. 83-87, 1997.. 6 H. Ito, S. Kodama, Y. Muramoto, T. Furuta, T. TEL 046-240-2523. Nagatsuma, and T. Ishibashi High-Speed and High-Output InP-InGaAs Unitraveling- FAX 046-240-4041. Carrier Photodiodes J. Selected Topics E-mail . 16 NTT
