42dB Loss Budget Hybrid DWDM-CDM-PON without Optical Amplifier

Abstract

First time, an unprecedented 42dB loss budget was realized by using hybrid DWDM-CDM (Code Division Multiplexing)-PON without optical amplifier. We experimentally demonstrated 100km 16λ-DWDM-CDM-PON bidirectional transmission with 62.5Mbps x 32 users / λ symmetry guaranteed bandwidth. Long reach PON is expected to reduce CapEx and OpEx cost.

Next Generation Optical Access Networks: from TDM to WDM

“…Typical figures are 16 λ DWDM-CDM PON, with a power budget of 42 dB at 100 km, with 32 orthogonal codes (32 users). Some of this long reach schemes provide high split ratio, long reach -greater than 60 kmand high symmetrical and asymmetrical bandwidth (10/2.5 Gbps) (Iwamura et al, 2007).…”