Narrow-Linewidth Discrete-Mode Laser Diodes for Coherent Communication Applications. - John O'Carroll; Richard Phelan; Brian Kelly; Tam N. Huynh; Barry Cardiff; Frank Smyth; Prince M. Anandarajah; Liam P. Barry (JOCN, 2012)

QAM synthesis by direct modulation of semiconductor lasers under injection locking. - Radan Slavík; Joseph Kakande; Richard Phelan; John O'Carroll; Brian Kelly; David J. Richardson (OFC/NFOEC, 2013)

Wavelength-tunable QAM synthesis by direct modulation of injection-locked Fabry-Perot semiconductor lasers. - Radan Slavík; Joseph Kakande; Richard Phelan; John O'Carroll; Brian Kelly; David J. Richardson (OFC/NFOEC, 2013)

WDM transmission at 2µm over low-loss Hollow Core Photonic Bandgap Fiber. - Naoise Mac Suibhne; Zhihong Li; Benedikt Baeuerle; John Zhao; John P. Wooler; Shaif-Ul Alam; Francesco Poletti; Marco N. Petrovich; Alexander M. Heidt; Natalie V. Wheeler; Naveen K. Baddela; E. Numkam Fokoua; et al. (OFC/NFOEC, 2013)

InP based active and passive components for communication systems at 2μm. - Brian Corbett; Michael Gleeson; Nan Ye; C. Robert; H. Yang; Hongyu Zhang; Naoise Mac Suibhne; Padraic E. Morrissey; Kevin Thomas 007; Agnieszka Gocalinska; Emanuele Pelucchi; Richard Phelan; et al. (ECOC, 2014)

Coherent optical OFDM based on direct modulation of injection-locked Fabry-Perot lasers. - Zhixin Liu; Joseph Kakande; Brian Kelly; John O'Carroll; Richard Phelan; David J. Richardson; Radan Slavík (ECOC, 2014)

Up to 64QAM (30 Gbit/s) directly-modulated and directly-detected OFDM at 2 μm wavelength. - Zhixin Liu; Zhihong Li; Yong Chen 015; John P. Wooler; Brian Kelly; Richard Phelan; John O'Carroll; Natalie V. Wheeler; Alexander M. Heidt; Francesco Poletti; Marco N. Petrovich; Shaif-Ul Alam; et al. (ECOC, 2014)

Low linewidth discrete mode lasers for coherent communications applications. - Richard Phelan; John O'Carroll; D. Bryne; R. Lennox; K. Carney; Liam P. Barry; Brian Kelly (ECOC, 2014)

81 Gb/s WDM transmission at 2μm over 1.15 km of low-loss hollow core photonic bandgap fiber. - Hongyu Zhang; Zhihong Li; Niamh Kavanagh; J. Zhao; Nan Ye; Yong Chen 015; Natalie V. Wheeler; John P. Wooler; John R. Hayes; Seyed Reza Sandoghchi; Francesco Poletti; Marco N. Petrovich; et al. (ECOC, 2014)

Tunable QAM transmitter based on direct modulation laser. - Joseph Kakande; Radan Slavík; Richard Phelan; John O'Carroll; Brian Kelly; David J. Richardson (OFC, 2014)

Monolithically integrated 2-section lasers for injection locked gain switched comb generation. - Rui Zhou; Prince M. Anandarajah; M. Deseada Gutierrez Pascual; John O'Carroll; Richard Phelan; Brian Kelly; Liam P. Barry (OFC, 2014)

Performance of a Semi-Nyquist NRZ-DQPSK System Employing a Flexible Gain-Switched Multicarrier Transmitter. - Vidak Vujicic; Rui Zhou; Prince M. Anandarajah; John O'Carroll; Liam P. Barry (JOCN, 2014)

40 Gbps WDM transmission over 1.15 km HC-PBGF using the first InP-based Mach Zehnder modulator at 2 μm. - M. U. Sadiq; Hongyu Zhang; Michael Gleeson; Nan Ye; Brendan Roycroft; Niamh Kavanagh; C. Robert; H. Yang; Kevin Thomas 007; Agnieszka Gocalinska; Zhihong Li; Yong Chen 015; et al. (ECOC, 2015)

52.6 Gbit/s single-channel directly-modulated optical transmitter for 2-µm spectral region. - Zhixin Liu; Zhihong Li; Yong Chen 015; Brian Kelly; Richard Phelan; John O'Carroll; John P. Wooler; Natalie V. Wheeler; Alexander M. Heidt; Thomas Richter; Colja Schubert; M. Becker; et al. (OFC, 2015)

Modulator-free quadrature amplitude modulation signal synthesis. - Zhixin Liu; Joseph Kakande; Brian Kelly; John O'Carroll; Richard Phelan; David J. Richardson; Radan Slavík (OFC, 2016)

300-km Transmission of dispersion pre-compensated PAM4 using direct modulation and direct detection. - Zhixin Liu; Graham D. Hesketh; Brian Kelly; John O'Carroll; Richard Phelan; David J. Richardson; Radan Slavík (OFC, 2017)

Photonic Integrated Circuits for NGPON2 Tunable ONUs. - John O'Carroll (OFC, 2018)