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Wide-band supercontinuum generation in mid-IR using polarization maintaining chalcogenide photonic quasi-crystal fiber
Valliammai M,
Published in The Optical Society
PMID: 29047617
Volume: 56
Issue: 16
Pages: 4797 - 4806
We report a polarization maintaining chalcogenide (ChG) photonic quasicrystal fiber (PQF) for wide-band mid- IR (MIR) supercontinuum (SC) generation. The numerical demonstration of SC generation in the proposed PQF spans from 2 to 15 μm wavelengths for a pulse power of 2 kW. Besides, the proposed PQF offers a high birefringence (10-3 to 10-2) from 3.5 to 15 μm wavelengths and exhibits a low confinement loss (10-7 to 10-1) for the wavelengths from 2 to 15 μm with single mode behavior. The proposed Ge11.5As24Se64.5 PQF is designed with zero dispersion wavelengths (ZDWs) at 4.33 and 4.46 μm for X and Y polarized modes within the wavelength range of 2-15 μm. The polarized spectral broadening of the continuum is realized for the first time from 2 to 15 μm using the proposed PQF with a length of 8 mm. Hence, the two orthogonally polarized modes allow the high degree of freedom in tuning the properties of the SC. Thus, the proposed PQF-based SC source is a good candidate for applications such as optical sensing, frequency metrology, and optical tomography. © 2017 Optical Society of America.
About the journal
JournalData powered by TypesetApplied Optics
PublisherData powered by TypesetThe Optical Society
Impact Factor1.230
Open AccessNo
Citation Styleunsrt
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