FTTX技术新进展及发展趋势.pdf

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FTTX 技术新进展及发展趋势
海信宽带多媒体技术有限公司
李大伟
lidawei@
Ligent
September , 2011
内容

FTTX 技术的演进

新一代FTTX 技术的特征

10G-PON 技术现状

海信宽带FTTX 新产品
Page 2 September 2011 CIOE
FTTX 技术的演进路线
With the growth of broadband access demands, the number of FTTX users has
been increasing all over the world and the PON system is widely deployed as a
cost effective work.

IEEE : Standard for Service Interoperability in Passive Optical
Networks (SIEPON)

BBF: GPON and NG-PON IOP Test
Page 3 September 2011 CIOE
接入带宽需求和对应技术
EPON/GPON
10G-EPON, XG-PON1
NG-PON2

近期: 10M-20M, high speed access +HDTV

中期: 30M-40M, 2xHDTV+8M + VOIP

长期: >100M, 3DTV+50M + VOIP
Page 4 September 2011 CIOE
新一代FTTX 技术的特征
1. 接入速度更高
In line bit rate changes from 622M, , , up to 10G, 25G,
and 40G (others) in the near future
2. 更高的功率预算
longer reach and higher splitting ratio
3. 高精度的监控功能
TX and RX power level monitoring.
Accuracy changes from +/-3dB, +/-2dB, +/-1dB
4. 节能功能
5. OLT 具有集成OTDR 功能
6. 更高的密度(may need the new PIC technologies)
Page 5 September 2011 CIOE
FTTX 功率预算
功率预算变化– longer reach and higher split ratio
2007 2011
EPON >PX-20 PX-20+ PX-20++
GPON Class B+ Class C Class C+ Class C++
10G-EPON >PR-20 PR-30 “PR-40”“PR-50”
NG-PON1 N1 N2 E1 E2
Split Ratio Target 1:32 1:64 1:128 1:256
Link Budget (dB) ~30 ~32 ~34 ~36
Higher splitting ratio and longer reach is in demand.
New technology and high performance devices are required for the
new application
Page 6 September 2011 CIOE
带集成OTDR功能的光模块
An integrated OTDR is a powerful and low cost tool for diagnosing the faults
in the ODN.
1:32
ONU1
OLT ONU2 ONU3
With 20m 40m
OTDR ONU4
2km 8km
60m
20m
90m
Low cost OTDR solution and range resolution better than 10m
Page 7 September 2011 CIOE
发展中的FTTX光集成技术
Current discrete OSA TO Based OSA
Pre-packaged devices
Presen connected by fibers
t PLC Based OSA
In