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2011-7-13

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�ؼ��ʣ��⴫��100 Gbit/s DWDM��40 Gbit/s DWDM��鴫��

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1 ҵ��100G��粽��δ��

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��ɷ��ϣ�100G�ڱ�׼��ñȽ��ơ�IEEE��ITU-T��OIF 3�ҷֱ��100G��صļ��˶��塣IEEE��Ҫ��ж�100G�Ŀͻ��̫��źŷ��ж��壬��103.125 Gbit/sΪ100GE��׼��ź��ʣ�ITU-T��OTU4��ODU4��ź��ʷֱ�Ϊ111 809 973.568 kbit/s��104 794 445.815 kbit/s��֤��100GE��Ϊ�ͻ��Ϣӳ�䵽OTU�ź�ʱ�ļ��⣻OIF��Ҫ��صĵ�ӿڣ�ͬʱҲչ��˶�DP-QPSK��͵�100G��ഫ��о��

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Ŀǰ100G��Ѳ��ʵ��õ�ƿ��Ʒ�Լ۱��Ϊ��õ��Ҫ��ء��ȻĿǰ100G��Ʒ�Լ۱Ȳ��ߣ��ջ�ﵽ��󣬶��г��ߣ��Ʒ�۸��ܿ��½��

��ͨ��Ϊ��Ĺ⴫��豸��Ӧ�̣�һֱ��¡��з��ĵ�·��2006��Ѿ��100G��ս�Բ��֡��˾��Ȼ��ص��Ⱥ�е��973��Ŀ��ٳ��⴫��о��͹��863��Ŀ��100GE��̫��ؼ��о��ϵͳ��ƽ̨��Ŀ��չ�˶�160��100 Gbit/s 2 000 km��3U�⴫��ϵͳ��о��ҵ��Ϊ�Ƚ��ı��뼼��и��õ�OSNR��DGD��ޣ��ʺϳ��ഫ�䡣Ŀǰ��˾100G�Ѿ�ȡ��̱��չ��100G�Ĺؼ��⣬Ϊ��Ĳ�ƷӦ�ô��õĻ��

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2 OTNӦ�ò�� ��罨��

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OTN�ʹ�ͳ�Ĳ��ּ��ȣ��зǳ��ļ��ơ��ȣ�OTN��֧�ֶ��ֿͻ��Ϣ��͸��ͣ��SDH��GE��10GE�ȡ��OPUk�ڴ��Ϣʱ��ź��κδ��첽ӳ��ģʽҲ��֤�˿ͻ��źŵĶ�ʱ��Ϣ��͡��⣬·��ʹ��10GE�ӿڿ��Դ�󽵵��罨��ɱ��ǰ��WDMϵͳ��OTN�ӿڡ��Σ�OTN�ṩ�˹��ֽ��ģʽ��ص�ͼ��Ҫ��ѡ�񣬲��Ҷ��ڵ罻��֧��ODU1(2.5 Gbit.s)��ODU2(10 Gbit/s)��ODU3(40 Gbit/s)��ֿ��Ľ��档�ٴΣ�OTN��˷ǳ��ḻ�Ŀ��SM��PM��TCM(1��6)�ȣ��ԱȻ��SDH��WDMֻ��SDH��B1��J0�ֽ��˵��ܺ͹��ϵļ��ǿ��

�ӹ��ڽ��OTN�Ѿ��Ϊ��ʵ�ı�׼��ر��ڸ��Ӫ�̵ı��س��У��˻��ڵ�㽻��OTN��֧��·��ļܹ��ʵ��˺��·�˵Ľ��ϣ��Ժ�ҵ��Ŀ��ٿ�ͨ�Ͳ��ĿǰOTN��չ�ܿ죬��Ҷ��Ƴ��Ӧ��OTN�豸��Ӫ��Ҳ�ǳ��עOTN��Ӧ�ü�ֵ��ҲΪOTN�Ŀ��Ӧ��˶��ͨ�Ŵ�2002�꿪ʼ��OTN��ĸ��ٺ��з��Ŭ��ڹ��OTN��ķ�չ��Ŀǰ�Ѿ��Ƴ�ȫϵ�е�OTN��Ʒ��γ��˶˵��˵Ľ��Ʒ��Ǻ��Ĳ㡢�Ǹɲ㡢��۲㡢��㣬��Ʒϵ�а��FONST 5000��FONST 4000��FONST 3000��FOSNT 2000��FONST 1000��һ��OTN��ƽ̨��OTN��Ʒһ��Ƴ��˿ͻ��Ĵ��Ͽɣ�Ŀǰ�Ѿ��ȫ��Ӫ��г��˴��ã��һ�ɡ��ɡ��س��ж��˳��ȶ��Ӧ�á�

3 40G��죬�ɾ��ּ��

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�Ӽ��ķ�չ��40G��Ѿ��Ƚϳ��죬��Ұ��40GӦ�õĲ��룬40G��𽥵ع�һ��ͼ��л��PDPSK��RZ-DQPSK��Ϊ��豸�̺��Ӫ��Ҫ��ѡ��PDPSK��OSNR��ޡ��޵��ܷ��ǳ��ƣ�Ωһ�Ĳ��DGD��޽�С��ҪӦ��ڹ��PMDָ��Ϻõ�Ӧ�ó��λ��12��22 dB��£��ҳɱ��ơ�RZ-DQPSK��OSNR��ޡ��޵ȷ��ܱȽϾ��⣬��PDPSK��ԣ��DGD��޽ϴ󣬿��PMDֵ��Ĺ��Ͻ��40G��罨�裬��Ҫ��λ��16��22 dB��µ�Ӧ�ó��

Ŀǰ��40G��缼��β�ҵ��ȽϷ�ɢ��ڹ��ٶ��Լ��۸��ϻ��һ��չ��ر��100G�ĳ��ֶ��40G�ĳ��ǱȽ��Եģ��ε��оƬ��ҰѾ��ط��100G��棬��40G��ҵ��Ƚϱ��ر��40G�Ŀͻ��˰׹��ģ��Ȼ�Ѿ��൱�Ĺ��Լ��۸��ҵ��Զ��

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4 PTN�� Ӧ�ÿռ䲻��չ

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PTN��ں��ṩ��ǿ��ͳ�Ƹ��ĵ��Թܵ��ʸߣ��Ӧ��ǿ�ķ��ҵ��ͻ��ԡ�PTNͬʱ�̳��SDH�Ĵ��ԡ��ǿ��OAM��ż��ͼ�λ��ơ�PTN��ȣ��Ӽ򵥣�ʵ�ã��ں��˶��ּ��ƣ�Ҳ��˱��ҵ��Ĺ�ע��Ŀǰ��ҵ��ͳ��˵��PTN�Ĺ�ģ��û��1-2��ʱ�䡣Ԥ��δ��5��ڣ�PTN��г��ڴ�ͳ��SDH�豸��

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