100-gigabaud optics usher in the era of terabit transmissions
Wednesday, December 16, 2020 at 11:00AM - NeoPhotonics has unveiled a coherent modulator and receiver that operate at over 100 gigabaud.
Telecom operators are in a continual battle to improve the economics of their optical transport networks to keep pace with the relentless growth of IP traffic.
One approach is to increase the symbol rate used for optical transmission. By operating at a higher baud rate, more data can be carried on an optical wavelength.
Ferris Lipscomb
Alternatively, a higher baud rate allows a simpler modulation scheme to be used, sending the same amount of data over greater distances. That is because the fewer constellation points of the simpler modulation scheme help data recovery at the receiver.
NeoPhotonics has detailed two optical components - a coherent driver-modulator and an intradyne coherent receiver (micro-ICR) - that operate at over 100 gigabaud (GBd). The symbol rate suits 800-gigabit systems and can enable one-terabit transmissions.
NeoPhotonics’ coherent devices were announced to coincide with the ECOC 2020 show.
