1. Design of All-Normal Dispersion Microstructured Optical Fiber on Silica Platform for Generation of Pulse-Preserving Supercontinuum Under Excitation at 1550 nm
- Author
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Igor A. Sukhoivanov, Enrique Silvestre, Oleksiy V. Shulika, Miguel V. Andrés, and Sergii O. Iakushev
- Subjects
Nonlinear optics ,Optical fiber ,Materials science ,Silici Compostos ,02 engineering and technology ,Supercontinuum generation ,01 natural sciences ,Graded-index fiber ,law.invention ,010309 optics ,Ultrafast processes in fibers ,020210 optoelectronics & photonics ,Optics ,Zero-dispersion wavelength ,law ,0103 physical sciences ,Dispersion (optics) ,0202 electrical engineering, electronic engineering, information engineering ,Dispersion-shifted fiber ,Ultrafast nonlinear optics ,business.industry ,Microstructured optical fiber ,Òptica ,Atomic and Molecular Physics, and Optics ,Supercontinuum ,Fibers ,Microstructured fibers ,business ,Photonic-crystal fiber - Abstract
We investigated numerically the possibility of all normal dispersion fiber design for near-infrared supercontinuum generation based on a standard air-silica microstructure. The design procedure includes finding of target dispersion profile and subsequent finding of appropriate geometrical fiber design by inverse dispersion engineering. It was shown that the tailoring of dispersion profile could increase the spectral width of generated supercontinuum while maintaining perfect spectral flatness. Conditions necessary for wide and flat supercontinuum generation as well as restrictions imposed by chosen materials were discussed. As a result of design and optimization procedure, an air-silica design was found providing normal dispersion up to $\text{3}\;\mu {\text{m}}$ . Simulation results with 10 nJ, 100 fs pulses demonstrate supercontinuum generation up to 1.3 octave; whereas pumping with 30 nJ, 100 fs pulses could provide 1.8 octavse supercontinuum.
- Published
- 2017