White light generation using photonic crystal fiber with sub-micron circular lattice

被引:29
作者
Saghaei, Hamed [1 ]
Ghanbari, Ashkan [2 ]
机构
[1] Islamic Azad Univ, Dept Elect Engn, Shahrekord Branch, Shahrekord, Iran
[2] IAU, Dept Elect Engn, Fac Engn, CTB, Tehran, Iran
来源
JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2017年 / 68卷 / 04期
关键词
photonic crystal fiber (PCF); white light; supercontinuum generation (SCG); dispersion engineering; OPTICAL COHERENCE TOMOGRAPHY; SUPERCONTINUUM GENERATION; DISPERSION; FABRICATION; WAVELENGTHS; GLASS;
D O I
10.1515/jee-2017-0040
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we study a photonic crystal fiber (PCF) with circular lattice and engineer linear and nonlinear parameters by varying the diameter of air-holes. It helps us obtain low and high zero dispersion wavelengths in the visible and near-infrared regions. We numerically demonstrate that by launching 100 fs input pulses of 1, 2, and 5 kW peak powers with center wavelength of 532 nm from an unamplified Ti:sapphire laser into a 100 mm length of the engineered PCF, supercontinua as wide as 290, 440 and 830 nm can be obtained, respectively. The spectral broadening is due to the combined action of self-phase modulation, stimulated Raman scattering and parametric four-wave-mixing generation of the pump pulses. The third and the widest spectrum covers the entire visible range and a part of near infrared region making it a suitable source for both white light applications and optical coherence tomography to measure retinal oxygen metabolic response to systemic oxygenation.
引用
收藏
页码:282 / 289
页数:8
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