Abstract
We demonstrate the first multiterabit/s wavelength division multiplexing data transmission through hollow-core antiresonant fiber (HC-ARF). In total, 16 channels of 32-GBd dual-polarization Nyquist-shaped 256QAM signal channels were transmitted through a 270-m-long fiber without observing any power penalty. In a single-channel high power transmission experiment, no nonlinearity penalty was observed for up to 1 W of received power, despite the very low chromatic dispersion of the fiber (<2 ps/nm/km). Our simulations show that such a low level of nonlinearity should enable transmission at 6.4 Tb/s over 1200 km of HC-ARF, even when the fiber attenuation is significantly greater than that of SMF-28. As signals propagate through hollow-core fibers at close to the speed of light in vacuum such a link would be of interest in latency-sensitive data transmission applications.
Highlights
DRIVEN by the continual succession of new applications and technologies the information transfer capacity of optical communication networks has grown exponentially over several decades, transforming almost every aspect of the global economy and our everyday social lives. This transformative power has come about as a result of many technological breakthroughs including the development of low-loss, single mode transmission fiber (SMF), the erbium-doped fiber amplifier (EDFA), wavelength division multiplexing (WDM), and more recently digital signal processing (DSP) enabled coherent transmission
This comparison is biased against the hollow-core antiresonant fiber (HC-ARF) in that the optical power along the fiber is always higher than the solid core fibers, indicating that HC-ARF has a much higher nonlinearity tolerance than the state-of-the-art large effective area solid core fiber, though its chromatic dispersion (CD) is 10 times smaller
The excellent quasi single mode behavior of the fiber allowed us to transmit dual-polarization-256QAM signals in a coherent 16-channel WDM system with negligible signal-to-noise ratio (SNR) penalty, and to achieve the highest data rate transmitted through an HC-ARF to date
Summary
DRIVEN by the continual succession of new applications and technologies the information transfer capacity of optical communication networks has grown exponentially over several decades, transforming almost every aspect of the global economy and our everyday social lives This transformative power has come about as a result of many technological breakthroughs including the development of low-loss, single mode transmission fiber (SMF), the erbium-doped fiber amplifier (EDFA), wavelength division multiplexing (WDM), and more recently digital signal processing (DSP) enabled coherent transmission. We show the significant potential of HC-ARF for optical communications by demonstrating the coherent transmission of a very high-order modulation format (256QAM) signal, over two polarizations, in a 16-channel 32 GBd DWDM system This results in a >14 times greater spectral efficiency (14.5 bit/s/Hz) than the previous demonstration, over a 2.7 time longer (270 m) length of HCARF. Experimental characterization of the CD of the fiber is shown for the first time, essentially confirming the low values of CD predicted in [15]
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