Conversion of ultrashort laser pulses to wavelengths above 3 mm in tapered germanate fibres

Journal Article · Sun May 31 00:00:00 EDT 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N05ABEH015756· OSTI ID:22551253

Anashkina, E A; Andrianov, A V; Kim, A V ^[1]

---

1. Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod (Russian Federation)

Tapered germanate fibres are proposed for effective adiabatic conversion of Raman soliton pulses to the mid-IR region. A theoretical analysis demonstrates that, in fibres with anomalous group velocity dispersion decreasing along their length, wavelengths of up to 3.5 μm can be reached, which are unattainable in fibres with a constant core diameter at the same parameters of a 2-μm input signal. The analysis relies on a one-way wave equation that takes into account the combined effect of dispersion, Kerr and Raman nonlinearities, nonlinear dispersion and optical losses and the frequency dependence of the effective fundamental transverse mode size. (extreme light fields and their applications)

• OSTI ID: 22551253
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 45, Issue 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
FIBERS
FREQUENCY DEPENDENCE
GERMANATES
INFRARED SPECTRA
KERR EFFECT
LASER RADIATION
PULSES
RAMAN EFFECT
SIGNALS
SOLITONS
WAVE EQUATIONS
WAVELENGTHS