Conference paper
Short Range Inter-Datacenter Transmission with Carrier Delivery and Remote Modulation for 112 Gb/s PM-QPSK Signals
Department of Photonics Engineering, Technical University of Denmark1
Metro-Access and Short Range Systems, Department of Photonics Engineering, Technical University of Denmark2
Networks Technology and Service Platforms, Department of Photonics Engineering, Technical University of Denmark3
Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark4
Mellanox Technologies, Inc.5
The increasing demand for bandwidth in datacenter interconnect links is currently driving a transition towards four level pulse-amplitude modulation (PAM-4) as the de facto modulation format. Nevertheless, other schemes with even higher spectral efficiency will be required in the future given the challenges of increasing baud rate or number of channels.
As enabling technology, we propose and demonstrate a coherent link concept inspired from passive optical networks (PON) where carrier delivery and remote modulation are used to achieve single wavelength transmission of polarization multiplexing quadrature phase shift keying (PM-QPSK) at 112 Gb/s in channels of 5 and 10 km single mode fiber (SMF).
By using a single laser for modulation and local oscillator the required complexity of digital signal processing is reduced in comparison to traditional digital coherent links.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 1-4 |
| Proceedings: | 19th International Conference on Transparent Optical NetworksInternational Conference on Transparent Optical Networks |
| ISBN: | 1538608588 , 1538608596 , 153860860X , 153860860x , 9781538608586 , 9781538608593 and 9781538608609 |
| ISSN: | 21612064 and 21612056 |
| Types: | Conference paper |
| DOI: | 10.1109/ICTON.2017.8024765 |
| ORCIDs: | Echeverri, Santiago , Rodríguez Páez, Juan Sebastián , Rommel, Simon , Vegas Olmos, Juan José and Tafur Monroy, Idelfonso |
Carrier delivery Coherent communications Fiber optics links and subsystems Remote modulation Short reach coherent.
Modulation Optical fiber polarization PM-QPSK signals Passive optical networks Receivers carrier delivery coherent communications computer centres datacenter interconnect links de facto modulation format digital coherent links digital signal processing distance 10 km distance 5 km fiber optics links and subsystems four level pulse-amplitude modulation light coherence light transmission optical communication equipment optical fibre communication optical fibre polarisation optical links optical modulation passive optical networks polarization multiplexing quadrature phase shift keying quadrature phase shift keying remote modulation short range inter-datacenter transmission short reach coherent single mode fiber single wavelength transmission spectral efficiency
