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- Title
Flat-top and broadband supercontinuum generation in CCl<sub>4</sub>-filled circular photonic crystal fiber.
- Authors
Thi, Thuy Nguyen; Trong, Duc Hoang; Tran, Bao Tran Le; Van, Lanh Chu
- Abstract
In this work, a flat-top and broadband supercontinuum (SC) generation in photonic crystal fibers (PCFs) infiltrated with carbon tetrachloride ( CCl 4) with different air hole diameters in the cladding has been introduced. The optical properties of the fundamental mode are analyzed by numerical simulation. Based on the obtained results, two optimized PCFs with small dispersion are proposed and verified against SC generation in detail. The first fiber has an all-normal dispersion of −9.376 ps.nm − 1 .km − 1 at the pump wavelength of 0.98 μ m, generating broadband of 768 nm and flat-top with only 0.3 nJ of input energy and time duration of 90 fs. In the meantime the dispersion property of the second fiber is anomalous, which equals 1.105 ps ⋅ nm − 1 ⋅ km − 1 at 1.3 μ m pump wavelength. The second fiber generates a SC spectrum of 1,751.1 nm with input energy and time duration of 0.55 nJ and 55 fs, respectively. Proposed fibers are suitable for all-fiber SC sources which could lead to new low-cost all-fiber optical systems.
- Subjects
SUPERCONTINUUM generation; PHOTONIC crystal fibers; CARBON tetrachloride; OPTICAL properties
- Publication
Journal of Nonlinear Optical Physics & Materials, 2024, Vol 33, Issue 3, p1
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S021886352350042X