Nodeless hollow-core fiber for the visible spectral range.

We report on a hollow-core fiber (HCF) whose fundamental transmission band covers almost the whole visible spectral window, starting at 440 nm. This HCF, in the form of a nodeless structure (NL-HCF), exhibits unprecedented optical performance in terms of low transmission attenuation of 80 dB/km at 532 nm, a broad transmission bandwidth from 440 to 1200 nm, a low bending loss of 0.2 dB/m at 532 nm under 8 cm bending radius, and single-mode profile. When launched to high-power picosecond laser systems at 532 nm, the fiber, exposed to ambient air, could easily deliver an 80 ps, 58 MHz, 32 W average power laser pulse with no damage and a 20 ps, 1 kHz high-energy laser pulse with a damage threshold in excess of 144 μJ at a fiber output. A proof-of-concept experiment on Raman spectroscopy in ambient air shows the significance of this broadband visible guiding HCF for interdisciplinary applications in nonlinear optics, ultrafast optics, lasers, spectroscopy, biophotonics, material processing, etc.

[1]  Wei Ding,et al.  Bending loss characterization in nodeless hollow-core anti-resonant fiber. , 2016, Optics express.

[2]  Francesco Poletti,et al.  Nested antiresonant nodeless hollow core fiber. , 2014, Optics express.

[3]  W. Ding,et al.  Hybrid transmission bands and large birefringence in hollow-core anti-resonant fibers. , 2015, Optics express.

[4]  F. Benabid,et al.  Compact and portable multiline UV & visible Raman laser in hydrogen-filled HC-PCF , 2009, 2009 35th European Conference on Optical Communication.

[5]  P. Roberts,et al.  Ultimate low loss of hollow-core photonic crystal fibres. , 2005, Optics express.

[6]  Fei Yu,et al.  Tunable fibre‐coupled multiphoton microscopy with a negative curvature fibre , 2016, Journal of biophotonics.

[7]  P. Russell,et al.  Broadband robustly single-mode hollow-core PCF by resonant filtering of higher-order modes. , 2016, Optics letters.

[8]  F. Benabid,et al.  Ultra low-loss hypocycloid-core kagome hollow-core photonic crystal fiber for the green spectral-range applications , 2014, 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications.

[9]  Luca Vincetti,et al.  Waveguiding mechanism in tube lattice fibers. , 2010, Optics express.

[10]  F Benabid,et al.  Multi-meter fiber-delivery and pulse self-compression of milli-Joule femtosecond laser and fiber-aided laser-micromachining. , 2014, Optics express.

[11]  D J Richardson,et al.  MicroStructure Element Method (MSEM): viscous flow model for the virtual draw of microstructured optical fibers. , 2015, Optics express.

[12]  F Benabid,et al.  Generation and Photonic Guidance of Multi-Octave Optical-Frequency Combs , 2007, Science.

[13]  W. Wadsworth,et al.  Cavity-based mid-IR fiber gas laser pumped by a diode laser , 2016 .

[14]  W. Wadsworth,et al.  Ultrashort pulse compression and delivery in a hollow-core photonic crystal fiber at 540 nm wavelength. , 2010, Optics letters.

[15]  Jesper Lægsgaard,et al.  Hollow-core fibers for high power pulse delivery. , 2016, Optics express.

[16]  J. Shephard,et al.  High energy green nanosecond and picosecond pulse delivery through a negative curvature fiber for precision micro-machining. , 2015, Optics express.

[17]  Amir Abdolvand,et al.  Hollow-core photonic crystal fibres for gas-based nonlinear optics , 2014, Nature Photonics.

[18]  Rodrigo Amezcua-Correa,et al.  Modal analysis of antiresonant hollow core fibers using S2 imaging. , 2016, Optics letters.

[19]  David J. Richardson,et al.  Multi-kilometer Long, Longitudinally Uniform Hollow Core Photonic Bandgap Fibers for Broadband Low Latency Data Transmission , 2016, Journal of Lightwave Technology.

[20]  J. Knight,et al.  Experimental study of low-loss single-mode performance in anti-resonant hollow-core fibers. , 2016, Optics express.

[21]  P. Roberts,et al.  Low loss broadband transmission in hypocycloid-core Kagome hollow-core photonic crystal fiber. , 2011, Optics letters.