DQPSK 방식 광송수신기를 이용한 2Tb/s WDM 신호의 장거리 전송실험
Transmission Experiment of 2Tb/s WDM Signal based on DQPSK Optical Transceiver
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초록
대용량 멀티미디어 서비스의 증가에 따른 코아 라우터간 인터페이스 속도의 지속적인 증가는 단거리 망에서 100기가비트 이더넷 (100GbE) 표준 제정을 촉발하였고, 장거리 광 전송망에서 단일 파장당 100기가 속도의 전송을 요구하고 있다. 따라서 본 논문에서는 100GbE 신호의 광전송망 수용을 위해 100기가급 광 변복조 기술을 비교하고 분석한다. 다음으로 DQPSK (Differential quadrature phase shift keying) 방식에 기초한 단일 파장당 107Gb/s 속도의광 송수신기 구현에 대해 논의하며 2 Tb/s(107Gb/s x 20채널) 신호를 320 km 전송하여 100GbE 신호의 장거리 전송 가능성을 확인한다. 그리고 100G 시스템으로 업그레이드 시 10G/40G/100G 신호가 혼용되어 전송되는 멀티 레이트 시스템의 성능을 분석하고 성능 보장 방법에 대해 논의한다.
Abstract
Recent demands on high speed interfaces between core routers due to bandwidth intensive multimedia services lead to 100 Gigabit Ethernet standards in local area network and 100 Gb/s transmission per a single wavelength in optical network. To support 100GbE signal in optical network, in this paper, we investigate optical modulation format suitable for 100 Gb/s per a single wavelength. 107 Gb/s optical transceiver based on differential quadrature phase shift (DQPSK) keying is also implemented, and the feasibility of long distance transmission of 100GbE is confirmed by 2 Tb/s (107Gb/s x 20 channels) WDM (wavelength division multiplexing) transmission over 320 km of single mode fiber. In addition, impacts of multi-rate transmission on DQPSK modulation format in a 10G/40G/100G hybrid system are investigate for future system upgrade.
참고문헌 (18)
- Cisco, "Cisco visual networking index: Forecast and methodology: 2008-2013", Cisco white paper, ~ (2009)
- IEEE 802.3, "LAN", MAN CSMA, IEEE standards association, ~
- "IEEE P802.3BA 40Gb/s and 100 Gb/s Ethernet task force"[URL]
- K. Schuh, "8 Tb", s (80×107 Gb, s, pp.Hz spectral efficiency, Bell Labs Technical Journal[DOI]
- P. J. Winzer, "107 Gb", s optical signal generation using electroics time-division-multiplexing, OSA, J. of Lightwave Technol, pp.2006, 24(8)[DOI]
- A. J. Price, "Reduced bandwidth optical digital intensity modulation with improved chromatic dispersion tolerance", Electron.Lett., 31, pp.58~59 (1995)
- B. Mikkelsen, "Partial DPSK with excellent filter tolerance and OSNR sensitivity", Electron. Lett, 42, pp.1363~1364 (2006)
- M. Daikoku, "100 Gb", s DQPSK transmission experiment without OTDM for 100G Ethernet transmission, OSA, J. of Lightwave Technol, pp.2007, 25(1)[DOI]
- A. H. Gnauck, "Optical phase-shift-keyed transmission", IEEE, 2005, pp.23(1), 112~130
- C. R. S. Fludger, "10 x 111 Gbit", s, 50GHz spaced, POLMUX-RZ-DQPSK transmission over 2375 km employing coherent equalisation
- "100G ultra long haul DWDM framework document"[URL]
- W. Shieh, "Coherent optical OFDM: theory and design", OSA Optics Express, 16(2), pp.841~859 (2008)
- S. Jansen, "121.9 Gb", s PDM-OFDM transmission with 2b, Hz spectral efficiency over 1000 km of S, pp.IEEE, OSA, J. of Lightwave Technol[DOI]
- K. P. Ho, "Phase-modulated optical communication systems", Springer, ~ (2005)
- Hwan Seok Chung, "Effects of Upstream Bit Rate on a Wavelength-Remodulated WDM-PON Based on Manchester or Inverse-Return-to-Zero Coding", ETRI Journal, 30(2), pp.255~260 (2008), 한국전자통신연구원
- S. Chandrasekhar, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7Gb", s DQPSK and 10.7Gb, Photon. Technol. Lett, pp.2007, 19(22)[DOI]
- M. Bertolini, "Monte Carlo estimation of PDM-QPSK", OOK and DQPSK, Photon. Technol. Lett, pp.2009, 21(1)[DOI]
- J. Jansen, "XPM induced degradation of multilevel phase modulated channel caused by neighboring NRZ modulated channels", presented at OFC, 2008