The design optimization and experimental investigation of the 4420 nm Raman laser based on hydrogen-filled revolver silica fiber

Optical properties of hollow-core revolver fibers are numerically investigated depending on various parameters: the hollow-core diameter, the capillary wall thickness, the values of the minimum gap between the capillaries, the number of capillaries in the cladding and the type of glass (silica and chalcogenide). Preliminary, similar calculations are made for simple models of hollow-core fibers. Based on the obtained results, the optimal design of the revolver fiber for Raman laser frequency conversion (1560 nm to 4420 nm in H2) was determined. As a result, efficient ns-pulsed 4420 nm Raman laser based on H2-filled revolver silica fiber is realized. Quantum efficiency as high as 36 % is achieved and output average power as high as 250 mW is demonstrated.

[1]  Knight,et al.  Single-Mode Photonic Band Gap Guidance of Light in Air. , 1999, Science.

[2]  E. Dianov,et al.  Light transmission in negative curvature hollow core fiber in extremely high material loss region. , 2013, Optics express.

[3]  A. A. Krylov,et al.  Raman Generation in 2.9–3.5 μm spectral range in revolver hollow-core silica fiber filled by H2/D2 mixture , 2017, 2017 Conference on Lasers and Electro-Optics (CLEO).

[4]  THIN FILM.  PREPARATION, PROPERTIES AND APPLICATIONS OF FERRITE , 2010 .

[5]  Daniel Gibson,et al.  Infrared glass-based negative-curvature anti-resonant fibers fabricated through extrusion. , 2016, Optics express.

[6]  I. Bufetov,et al.  Hollow-core microstructured ‘revolver’ fibre for the UV spectral range , 2016 .

[7]  Aleksei M. Zheltikov.  Colors of thin films, antiresonance phenomena in optical systems, and the limiting loss of modes in hollow optical waveguides , 2008 .

[8]  B. Eggleton,et al.  Antiresonant reflecting photonic crystal optical waveguides. , 2002, Optics letters.

[9]  Benoit Debord,et al.  Over-five octaves wide Raman combs in high-power picosecond-laser pumped H(2)-filled inhibited coupling Kagome fiber. , 2015, Optics express.

[10]  E. Marcatili,et al.  Hollow metallic and dielectric waveguides for long distance optical transmission and lasers , 1964 .

[11]  Alexey F. Kosolapov,et al.  Efficient Raman generation in a hydrogen-filled hollow-core fibre , 2015 .

[12]  Alexey F. Kosolapov,et al.  Impact of geometrical parameters on the optical properties of negative curvature hollow-core fibers , 2014, 1412.7084.