Abstract

Alternate-mark-inversion (AMI) has been used in the past to improve the transmission performance of binary intensity modulation formats. In this work, we improved the tolerance of O-band 4-level pulse amplitude modulation (PAM4) transmission to channel impairments through the adoption of an AMI scheme. Improvements in receiver sensitivity were shown in both semiconductor optical amplifier (SOA) and bismuth-doped fibre amplifier (BDFA) equipped links. We confirmed the capability of 4-level AMI to extend the reach in the O-band, which was achieved through the mitigation of nonlinear and dispersive effects. We experimentally demonstrated a 4.28-dB Q-factor improvement for transmission over 60 km of SMF-28e. To offer an insight to the mechanisms leading to the improved tolerance to transmission impairments, we presented numerical simulations that illustrate the underlying method of action of AMI4.

High-bandwidth generation of duobinary and alternate-mark-inversion modulation formats using SOA-based signal processing

James M. Dailey, Mark J. Power, Roderick P. Webb, and Robert J. Manning
Opt. Express 19(27) 25954-25968 (2011)

Experimental demonstration of single-span 100-km O-band 4×50-Gb/s CWDM direct-detection transmission

Yang Hong, Natsupa Taengnoi, Kyle R. H. Bottrill, Naresh K. Thipparapu, Yu Wang, Jayanta K. Sahu, David J. Richardson, and Periklis Petropoulos
Opt. Express 30(18) 32189-32203 (2022)

Experimental investigation of BDFA-based O-band direct-detection transmission using an optical recirculating loop

Yang Hong, Natsupa Taengnoi, Kyle R. H. Bottrill, Yu Wang, Jayanta K. Sahu, Periklis Petropoulos, and David J. Richardson
Opt. Express 31(7) 10978-10990 (2023)

Numerical and experimental study on the impact of chromatic dispersion on O-band direct-detection transmission

Yang Hong, Kyle R. H. Bottrill, Natsupa Taengnoi, Naresh K. Thipparapu, Yu Wang, Jayanta K. Sahu, David J. Richardson, and Periklis Petropoulos
Appl. Opt. 60(15) 4383-4390 (2021)

All-optical technique for modulation format conversion from on-off-keying to alternate-mark-inversion

J. M. Dailey, R. P. Webb, and R. J. Manning
Opt. Express 18(21) 21873-21882 (2010)