Abstract
A bit-error rate (BER)-adaptive wavelength-switched optical network (WSON) employing the multiformat and multirate transmitter/receiver is experimentally demonstrated. The flexible transmitter is capable of generating binary phase-shift-keying, quadrature phase-shift-keying, eight-ary quadrature amplitude modulation, 8QAM, and 16QAM, as well as changing the symbol rate. On the other hand, the flexible receiver based on a coherent detection scheme is utilized not only to detect the optical signal with any modulation format/rate, but also to send the BER information to an OpenFlow controller via extended OpenFlow protocols. Since the measured BER is a reliable barometer of the optical path conditions, an extended OpenFlow-based control plane with the OpenFlow controller intelligently determines and assigns either appropriate modulation format/rate or a backup path in WSON in accordance with BER information.
| Original language | English |
|---|---|
| Article number | 6359752 |
| Pages (from-to) | 119-121 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
Keywords
- Elastic optical network
- flexible transmitter
- OpenFlow
- quadrature amplitude modulation (QAM)
- software defined network (SDN)
- wavelength-switched optical network (WSON)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering