Bi-Directionally Amplified Extended Reach 40Gb/s CWDM-TDM PON with Burst-Mode Upstream Transmission

Abstract

We demonstrate a 60-km CWDM-TDM PON with 40 Gb/s capacity both down and upstream. The system incorporates technologies such as volume manufacturable transmitters, burst-mode transmission, hybrid SOA-Raman amplifiers, and a cyclic CWDM multiplexer.

Semiconductor optical amplifiers in data networking and optical access

“…The typical SOA has a wide enough bandwidth to allow amplification of signals from different generations of standards, e.g., 1490 nm for GPON and 1577 nm for 10G-PON [10]. In fact, so much bandwidth is available that simultaneous amplification of four stacked PONs operating on a CWDM wavelength grid is possible [11].…”

Asymmetrical TWDM-PON with 4 × 25-Gb/s downstream DSB OFDM and 4 × 10-Gb/s upstream OOK modulations

“…From then, various TWDM-PON have been proposed to support 40-Gb/s data rate [8][9][10][11][12]. As the growth of users' demand, the main target of future high-capacity PON system is to provide high access rate and more number of subscribers [13][14][15].…”

Demonstration and Performance Investigation of Hybrid OFDM Systems for Optical Access Network Applications

“…On the other hand the demand for transporting increased traffic volumes (up to several tens of Gb/s of aggregate capacity) is extremely challenging for TDM-based systems. To increase the aggregate transport capacity, wavelength-division multiplexing (WDM) based architecture has been widely studied both standalone and in combination with time-division multiple access (TDMA) [12]. However, in addition, WDM PONs demonstrate limitations in terms of scalability and efficiency in the bandwidth exploitation.…”