We report a PM-16QAM transmission experiment through hollow-core NANF with reduced inter-modal interference. We recirculated 41 C-band channels at 32GBaud up to 1150km with average GMI 7.14 bits/symb. For selected channels we reached beyond 1500km, the current record for long-haul PM-16QAM transmission over NANF.

We report the first double-nested antiresonant hollow core fiber. The fiber matches the loss of commercial solid core fibers in the C-band (0.174 dB/km) and fundamentally improves it (0.22 dB/km) in the O-band.

We report order-of-magnitude improvements in performance of field-deployable hollow-core fiber cables evidenced by a 38.4Tb/s (800Gb/s-x-48WDM-channels) 20.5km lab-trial using commercial terminal equipment and the demonstration of 1128km/126km reach in full-fill 400/800Gb/s WDM recirculating-loop experiments.

We report new transmission distance records through hollow-core NANF with reduced inter-modal interference. We recirculated 41xPM-QPSK C-band channels @32GBaud up to 2070km with average GMI 3.64 bits/symb. For select channels we reached beyond 5000km.

We report a hollow core Nested Antiresonant Nodeless Fibre (NANF) with a loss of 0.65dB/km across the full C and L telecommunication bands. The fabricated fibre is 1.23km long, it is effectively single moded over sufficiently long lengths, and is able to transmit data.

Mid-IR supercontinuum sources are a new type of source for the 2-4.5 μm spectrum, but their weight, size and power consumption has previously made them unsuitable for mobile sensing. We demonstrate a highly compact supercontinuum source with a weight of <1 kg and a power consumption of <15 W emitting a spectral brightness comparable to that of a synchrotron and covering the entire 1.8-4.4 μm spectrum. We will also discuss challenges and opportunities of working with a broadband source instead of a single line or tunable source and touch upon the future potential for supercontinuum reaching further into the mid-IR

Recently, high brightness and broadband supercontinuum (SC) sources reaching far into the infrared (IR) have emerged with the potential to rival traditional broadband sources of IR radiation. Here, the brightness of these IR SC sources is compared with that of synchrotron IR beamlines and SiC thermal emitters (Globars). It is found that SC sources can deliver a brightness that is 5-6 orders of magnitude higher than Globars and 1-2 orders of magnitude higher than typical IR beamlines, matching the beamlines at least out to 10.6 mu m (940 cm(-1)). This means that these sources can now cover nearly all of the 800-5000 cm(-1) spectrum (2-12.5 mu m) which is frequently used in IR spectroscopy and microscopy. To demonstrate applicability, such an IR SC source was used for transmission spectroscopy of highly scattering filtration membranes from 3500 to 1300 cm(-1), and transmission microscopy of colon tissue at 1538 cm(-1). (C) 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

Recent advances in supercontinuum generation technology have enabled the development of lasers with higher power and broader spectral content, allowing exploitation of these light sources in a range of new and exciting application areas.

In this talk we give an overview of recent advances in the development of high power supercontinuum fiber lasers with powers exceeding 50W and spectral brightness of tens of mW/nm. We also discuss the fundamental limitations of power scaling and spectral broadening and review the existing and emerging applications of this unique light source which combines the broadband properties of a light bulb with the spatial properties of a laser.

In this paper we demonstrate a 51.5 W supercontinuum spanning 405 nm to 2660 nm with endlessly single mode output, and a blue enhanced 33.6 W supercontinuum spanning 380 nm to 2575 nm. We also show results combining 7 SC laser outputs, resulting in 26 W visible power. This method of combining fiber laser outputs can be scaled up, creating a pathway to kW level supercontinuum fiber lasers with greater than 95 W in the visible part of the spectrum.

We report the coherent spectral broadening of a mode-locked VECSEL in normal-dispersion photonic crystal fibers. Subsequent compression produced 150 fs pulses at 270 mW average power or 220 fs pulses at 520 mW average power.

We report the use of a dispersed supercontinuum generated in an all-normal-dispersion fibre to record low-noise spectra from atmospheric molecules at least an order of magnitude faster than has been previously reported. Supercontinuum generation in standard, anomalous dispersion photonic-crystal fibres is inherently connected with large pulse-to-pulse fluctuations resulting in detrimental consequences for high resolution spectroscopy if temporal averaging is not permitted. Replacing the standard photonic-crystal fibre (PCF) with a specially designed all-normal dispersion PCF we find that a substantially superior noise performance is achieved and present its use for high repetition rate absorption spectroscopy where spectra covering hundreds of nm in spectral bandwidth can be captured of gases at hundreds of kHz repetition rates.

We report the coherent spectral broadening of the output of a mode-locked VECSEL emitting 455 fs pulses at 1007 nm in the normal-dispersion regime. Subsequent compression of the fiber outputs using a transmission grating compressor produced 1.56 GHz trains of 150 fs pulses at 270 mW average power or 220 fs pulses at 520 mW average power. The system approaches the performance needed for a pump for coherent supercontinuum generation.

We describe supercontinuum generation using photonic crystal fibres with all-normal group velocity dispersion profiles, pumped at 1064 nm and 800 nm wavelengths. Highly coherent and stable continua are demonstrated experimentally. We present pulse duration measurements obtained when spectrally filtering the all-normal dispersion supercontinuum, and show that this method is an excellent candidate for use as a compact, low-noise, tunable ultrafast laser source. Experimental spectral and temporal measurements are interpreted using numerical simulations, and experiment and modeling are shown to be in very good agreement.

We demonstrate supercontinuum generation in a photonic crystal fiber with all-normal group velocity dispersion.Pumping a short section of this fiber with compressed pulses from a compact amplified fiber laser generates a 200 nm bandwidth continuum with typical self-phasemodulation characteristics.We demonstrate that the supercontinuum is compressible to a duration of 26 fs.It therefore has a high degree of coherence between all the frequency components, and is a single pulse in the time domain.A smooth, flat spectrum spanning 800 nm is achieved using a longer piece of fiber.

We describe supercontinuum generation in a short photonic crystal fiber with all normal group velocity dispersion. We observe a 200 nm broad self phase modulation spectrum, which is expected to have high temporal coherence.