Synthesis of electromagnetic modes in photonic band gap fibers
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197076299-MIT.pdf
Description
Full printable version
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3.83 MB
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Checksum (MD5)
998366a1852565401941c747f93f778b
Author(s)
Hu, Qichao
Advisor(s)
Yoel Fink.
Date Issued
2007
Publisher
Massachusetts Institute of Technology
Abstract
In this paper, we report on the successful synthesis of three individual modes, HE11, TEo0, and TE02 for transmission in photonic band gap fibers at near infrared wavelengths. We measure the propagation losses of the HE11 and TE01 modes both inside and outside the band gap of the fiber, and show that the TE01 is indeed the lowest loss mode, and is less lossy and has a much wider band gap than the HE11. We study the superpostions of the HE11 and TE01 modes using the pure phase approach, and discuss the degeneracy problem that arises. We analyze these superpositions by decomposing the superposed images into low energy eigenmodes (m < 3), and compute each of the eigenmode's contribution in the superposition. We show that the contributions of the HE11 and TE01 behave sinusoidally in their superpostions. Finally we also explain the minor discrepancies between the superposition and decomposition results.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007.
Includes bibliographical references (leaves 66-67).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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