Sadiq, MU;Zhang, HY;O'Callaghan, J;Roycroft, B;Kavanagh, N;Thomas, K;Gocalinska, A;Chen, Y;Bradley, T;Hayes, JR;Li, ZH;Alam, SU;Poletti, F;Petrovich, MN;Richardson, DJ;Pelucchi, E;O'Brien, P;Peters, FH;Gunning, F;Corbett, B

2016

April

Journal of Lightwave Technology

40 Gb/s WDM Transmission Over 1.15-km HC-PBGF Using an InP-Based Mach-Zehnder Modulator at 2 mu m

Validated

Altmetric: 1 ()

PHOTONIC BANDGAP FIBER OPTICAL COMMUNICATIONS LIGHT

34

1706

1711

The 2-mu m wavelength range has emerged as a low-loss and low-latency optical transmission window when using hollow-core photonic band gap fiber (HC-PBGF) and high-gain thulium-doped fiber amplifiers (TDFA). Various single and multichannel transmission experiments at these wavelengths have been implemented using directly modulated lasers and LiNbO3-based modulators. Here, we report the transmission performance of an externally modulated 4 x 10 Gb/s NRZ-OOK WDM signal over 1.15 km of low-loss HC-PBGF employing an InP-based Mach-Zehnder modulator (MZM) in the transmitter for the first time. An OSNR of 25 dB on 100-GHz spaced channels is required using a direct detection scheme. Furthermore, we demonstrate the lowest V-pi InP-based MZM operating at 2 mu m by increasing the electro-optical overlap in the optical waveguide. The peak-peak modulation voltage is reduced significantly from 4 to 2.7 V with an electro-optic bandwidth of 9 GHz.

PISCATAWAY

0733-8724

10.1109/JLT.2015.2508941