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Optical Engineering

Ultraflattened high negative chromatic dispersion over O+E+S+C+L+U bands of a microstructured optical fiber
Author(s): Russel Reza Mahmud; S. M. Abdur Razzak; Md. Imran Hasan; G. K. M. Hasanuzzaman
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Paper Abstract

This paper presents a large negative flattened dispersion with high birefringence for a very wide wavelength range by designing a new high index lead silicate (SF57) soft glass equiangular decagonal spiral microstructured optical fiber (DS-MOF). The bandwidth supports the second and third windows covering the O+E+S+C+L+U bands in the infrared region. The guiding properties of the DS-MOF are investigated by the finite-element method with a perfectly matched layer boundary. The proposed design is a suitable candidate for the application of residual dispersion compensation with maintaining polarization characteristics since it offers a high negative flattened dispersion of −(453 ± 7)  ps⋅nm−1 km−1 with a high birefringence of the order 10−2 for the wide wavelength range of 1.15 to 1.75  μm. The DS-MOF has some circular air holes that make the fabrication process simple. In addition, the effects of changing the structural parameters by up to ±4% are also analyzed to ensure the accuracy during the fabrication process.

Paper Details

Date Published: 11 September 2015
PDF: 7 pages
Opt. Eng. 54(9) 097105 doi: 10.1117/1.OE.54.9.097105
Published in: Optical Engineering Volume 54, Issue 9
Show Author Affiliations
Russel Reza Mahmud, Ahsanullah Univ. of Science and Technology (Bangladesh)
S. M. Abdur Razzak, Rajshahi Univ. of Engineering and Technology (Bangladesh)
Md. Imran Hasan, Rajshahi Univ. of Engineering & Technology (Bangladesh)
G. K. M. Hasanuzzaman, Rajshahi Univ. of Engineering & Technology (Bangladesh)

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