Zoran Vujicic

TL;DR: In this paper, a set of architectures for coherent optical access networks is presented and the key attributes of each scenario are investigated, as a basis to decrease the cost of the local oscillator (LO) at customer side, and the possibility of using a low-cost laser as LO with real-time detection of a Nyquist-shaped differential quadrature phase-shift keying (DQPSK) signal using simple 8-bit digital signal processing (DSP) on a fieldprogrammable gate array.

TL;DR: In this article, the authors demonstrate a proof of concept fully loaded bidirectional ultrahigh capacity coherent passive optical network (2 × 1008 × 8.3 Gb/s) using partial spectrum overlap, Nyquist shaping, digital frequency shifting, self-homodyne detection, and pilot tone remodulation.

TL;DR: In this paper, the progress in ultra-dense wavelength division multiplexing passive optical network (UDWDM-PON) is reviewed by making use of the key attributes of this technology in the context of optical access and metro networks.

TL;DR: A time-domain wideband model is presented for simulation of spatial and temporal distribution of photons and carriers in a bulk RSOA and a novel approach for efficient amplified spontaneous emission modeling is provided, considering a tradeoff between the accuracy and the computational efficiency.

TL;DR: In this article, the authors investigate the power budget of a fully coherent reflective passive optical network, based on self-coherent upstream (US) and self-homodyne downstream (DS) detection schemes.