Speaker
Dr
Davide Janner
(ICFO-The Institute of Photonic Sciences, Barcelona, Spain)
Description
In this work we demonstrate a digital error-free transmission (BER < 1e-12) at a bit rate of 10.7 Gb/s over a 2 km optical-link obtained with an ultra-low-voltage lithium niobate Mach-Zehnder modulator (LNM) driven by 0.6 Vpp and with 1 mW of optical input power at a wavelength of 1550 nm. Voltages in this range allow driving the modulator directly from the board and placing the optical active part of the link (e.g. signal lasers) outside the critical radiation area. This implies a strong reduction of components’ number and power requirement in the “hot” zone. In such a scenario, lasers are some hundred meters away from the modulators and polarization issues along the laser-modulator connecting fibre link play a significant role, in particular if deployment of polarization maintaining fibres has to be avoided to reduce the system cost. We will present proposals and results aimed at employing single mode fibers (SMF) throughout the link (laser-modulator-detector) without increasing penalties due to polarization dependency. We also address the integration of the overall link presenting a low cost solution for laser-modulator subsystem.
Authors
Dr
Davide Janner
(ICFO-The Institute of Photonic Sciences, Barcelona, Spain)
Prof.
Giuliano Parrini
(INFN and University of Firenze, Italy)
Dr
Marco Meschini
(INFN Firenze, Italy)
Dr
Stefano Pelli
(CNR-IFAC - Istituto di Fisica Applicata Firenze Italy)
Dr
Valerio Pruneri
(ICFO-The Institute of Photonic Sciences, Barcelona, Spain)
