DSP-free and Shared SOA for HS-PON Transmissions with up to 30dB Optical Budget and 15dB dynamic range

Abstract

We experimentally demonstrate a real time 50Gbit/s downstream and 25Gbit/s upstream HSP transmissions reaching 29.7dB of optical budget (45km reach) without DSP and using only a single SOA placed in the OLT.

Key Technologies for a Beyond-100G Next-Generation Passive Optical Network

“…The ITU-T Recommendations for high-speed PON (HS-PON), published in September 2021, outline the industry requirements for the promising 50G PON. In the first PON standard, HS-PONs must employ digital signal processing (DSP) [9,10] to overcome the severe fiber dispersion and other impairments that can be experienced at this line rate. Given its characteristics of a large capacity, low delay, low cost, and high reliability, the beyond-100G PON [11][12][13][14] using DSP could be developed into an NG-PON in the future by using various advanced key technologies.…”

Key Technologies for Beyond 100G Next Generation Passive Optical Network

“…In the first PON standard, HS-PON will employ digital signal processing (DSP) to overcome the severe fiber dispersion damage that will be experienced at this line rate. At the same time, beyond-100G PON [4][5][6][7][8] has the characteristics of large capacity, low delay, low cost and high reliability, using various advanced technologies such as coherent detection and flexible rate PON with DSP. The research community has set its eyes on the future single-channel intensity modulation direct detection (IM/DD) system above 100 Gbps to achieve high-speed PON.…”