Abstract Space communication for deep-space missions, inter-satellite data transfer and
Earth monitoring requires high-speed data connectivity. The reach is fundamentally dictated …

In principle, optical phase-sensitive amplifiers are known to be capable of realizing
noiseless amplification, as well as improving the signal-to-noise-ratio of optical links by 3 dB …

The performance of future ultralong-haul communication systems exploiting phase-encoded
signals is likely to be compromised by nonlinear phase noise generated during signal …

The capacity and reach of long-haul fiber optical communication systems is limited by in-line
amplifier noise and fiber nonlinearities. Phase-sensitive amplifiers add 6 dB less noise than …

We present a new class of optical modulation formats based on the combination of m-ary
pulse-position modulation (m-PPM) or m-ary frequency-shift keying (FSK) with additional …

We investigate the impact of in-line amplifier noise in transmission systems amplified by two-
mode phase-sensitive amplifiers (PSAs) and present the first experimental demonstration of …

In this paper, we investigate the properties of transmission links amplified by phase-sensitive
amplifiers (PSAs). Using an analytic description, we explain the principles enabling …

In this work we experimentally demonstrate 500 km unrepeatered transmission of a single-
channel 100 Gb s− 1 dual polarization quadrature phase shift keyed (DP-QPSK) signal …

We demonstrated multi-span transmission using a periodically poled LiNbO_3 (PPLN)
based phase sensitive amplifier (PSA). An in-line PSA with a carrier recovery and phase …

We demonstrate 25-Gbit/s four-level pulse amplitude modulation transmission over 28-km
standard single-mode fiber using an off-the-shelf 10-Gbit/s electro-absorption modulated …