<Table> <Tr> <Th> Year </Th> <Th> Organization </Th> <Th> Effective speed </Th> <Th> WDM channels </Th> <Th> Per channel speed </Th> <Th> Distance </Th> </Tr> <Tr> <Td> 2009 </Td> <Td> Alcatel - Lucent </Td> <Td> 15.5 Tbit / s </Td> <Td> 155 </Td> <Td> 100 Gbit / s </Td> <Td> 7000 km </Td> </Tr> <Tr> <Td> </Td> <Td> NTT </Td> <Td> 69.1 Tbit / s </Td> <Td> 432 </Td> <Td> 171 Gbit / s </Td> <Td> 240 km </Td> </Tr> <Tr> <Td> 2011 </Td> <Td> NEC </Td> <Td> 101.7 Tbit / s </Td> <Td> 370 </Td> <Td> 273 Gbit / s </Td> <Td> 165 km </Td> </Tr> <Tr> <Td> 2011 </Td> <Td> KIT </Td> <Td> 26 Tbit / s </Td> <Td>> 300 </Td> <Td> </Td> <Td> 50 km </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> BT & Huawei </Td> <Td> 5.6 Tbit / s </Td> <Td> 28 </Td> <Td> 200Gb / s </Td> <Td> circa 140 km? </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> Nokia Bell Labs, Deutsche Telekom T - Labs & Technical University of Munich </Td> <Td> 1 Tbit / s </Td> <Td> </Td> <Td> 1Tb / s </Td> <Td> </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> Nokia - Alcatel - Lucent </Td> <Td> 65 Tbit / s </Td> <Td> </Td> <Td> </Td> <Td> 6600 Km </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> BT & Huawei </Td> <Td> 11.2 Tbit / s </Td> <Td> 28 </Td> <Td> 400 Gb / s </Td> <Td> 250 Km </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Organization </Th> <Th> Effective speed </Th> <Th> WDM channels </Th> <Th> Per channel speed </Th> <Th> Distance </Th> </Tr> <Tr> <Td> 2009 </Td> <Td> Alcatel - Lucent </Td> <Td> 15.5 Tbit / s </Td> <Td> 155 </Td> <Td> 100 Gbit / s </Td> <Td> 7000 km </Td> </Tr> <Tr> <Td> </Td> <Td> NTT </Td> <Td> 69.1 Tbit / s </Td> <Td> 432 </Td> <Td> 171 Gbit / s </Td> <Td> 240 km </Td> </Tr>

Who invented optical fibre which are used in telecommunication