100-Gbit/s Optical Transmission Field Trial Using Digital Signal Processor
- Technological fields
- Telecommunications Network Technologies
- Keyword
- 100 G
- DSP
- Field trial
- Laboratory organization
- NTT Network Innovation Laboratories
Overview
We have developed the world’s most advanced digital signal processor (DSP) for 100-Gbit/s optical transmissions over high-speed, large-capacity optical transport networks. The DSP compensates for the degradation of signals transmitted across long distances and has a chromatic dispersion estimation function which enables fast link-up when switching optical routes. We conducted 100-Gbit/s optical transmission field trials using the DSP and confirmed its excellent performance.
Features
- 100-Gbit/s optical transmission using a large-scale integrated DSP and a polarization division-modulation quadrature phase shift keying (PDM-QPSK) modulation scheme
- Second-generation DSP equivalent to a supercomputer (100 M gates DSP)
- Fast and accurate chromatic dispersion estimation
- Link-up faster than the ITU-T standard switching time (50ms)
Application scenarios
- Next-generation 100 Gbit/s backbone optical transport network
- Future metro optical transport network
- - This work is partly supported by R&D of “High-speed Optical Transport System Technologies”
and “High-speed Optical
Edge Node Technologies” by the Ministry of Internal Affairs and Communications (MIC) of Japan. - - This work is partly supported by the “Universal Link Project” of the National Institute of
Information and Communications
Technology (NICT) of Japan.
