Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 33, Issue 18, Pages 3914-3920Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2015.2418993
Keywords
Highly nonlinear photonic crystal fiber; mid-infrared supercontinuum; nonlinear optics
Funding
- TIFAC-Center of Relevance and Excellence in Fiber Optics and Optical Communication at Delhi Technological University Delhi, through Government of India
- TUN-IND Bilateral Research Project - Ministry of Higher Education and Scientific Research of the Republic of Tunisia
- Department of Science and Technology, Government of India
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In this paper, we report analysis, design, and numerical modeling of mid-infrared supercontinuum generation across 2-15 mu m molecular fingerprint region using a new design of triangular-core graded-index photonic crystal fiber (PCF) pumped with 50 fs laser pulses of peak power of 3.5 kW at 4.1 mu m. Proposed PCF design offers the nonlinear coefficient as high as 1944 W-1 . Km(-1) at pump wavelength. To the best of our knowledge, the supercontinuum in PCF with such broadband spectra has been reported first time. Proposed PCF design has potential applications in gas sensing, food quality control, and early cancer diagnostics.
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