Saeed Ghasemi

TL;DR: The successful field trial of the proposed systems in a testbed where 14 UDWDM channels are transmitted simultaneously in a dark-fiber network deployed in the city of Pisa (Italy), delivering real-time and/or test traffic is reported.

TL;DR: Results indicate that this new class of CoTRX enables effective implementation of wavelength-to-the-user PON with dedicated 1.25–20 Gb/s per user, in an ultra-dense 6–25 GHz spaced WDM optical grid, with >30 dB loss budget, outperforming the current competing technologies for access networks.

TL;DR: An optimized carrier recovery architecture based on differential detection for coherent optical receivers that substantially reduces the required DSP hardware resources, aimed at cost-effective transceivers for access networks applications.

TL;DR: In this paper, an UDWDM-PON with simple real-time ASK and DPSK transceivers at 6.25 GHZ channel spacing is validated in a field-trial with deployed fiber with power budget above 40 dB.

TL;DR: In this article, a lookup table (LUT)-free carrier recovery architecture for intradyne optical DPSK receivers was proposed to reduce the required digital signal processing hardware resources, power consumption as well as total process clocks, aimed at cost effective transceivers for access networks applications.