In this paper, we propose a novel circuit and system to optimize the spacing between optical
channels in gridless (also called flexible-grid or elastic) networking. The method will exploit …

We propose a novel elastic optical path network where each specific bitrate signal uses its
own dedicated fixed grid and a slot-width-edge anchor frequency. Numerical evaluations …

Flexible grid optical networks allow a better exploitation of fiber capacity, by enabling a
denser frequency allocation. A tighter channel spacing, however, requires narrower filters …

We experimentally demonstrate real-time error-free transmission for longer than 65 h using
a 400G rate-adaptive flexible-grid transponder in a metro regional Telecom Italia …

Flexible grid optical networks allow a better exploitation of fiber capacity, by enabling a
denser frequency allocation. A tighter channel spacing, however, requires narrower filters …

In this paper, bandwidth and bit rate variable optical transceiver architectures, targeting high
capacity and low cost, are presented and discussed as technology enablers for inter-data …

We propose a novel elastic optical path network where each specific bitrate signal uses its
own dedicated fixed grid and one edge of its frequency grid is anchored at a specific …

Spectrum-efficient optical transmission with bitrates of 400 Gb/s and beyond can be
achieved using flexible modulation with advanced DSPs. The technology options include …

Historically, network technology has largely been “one size fits all”; for example, a transmitter
card generates a single data rate with a specified optical reach. The flexible approaches …

Higher-order modulation formats and spectral super-channels are key to maximizing
spectral efficiency (SE) in next-generation optical transport networks, thereby …