Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Dissertation- Mohammad Almanee.pdf (3.06 MB)

ETD Abstract Container

Abstract Header

Intense, Ultrashort Pulse, Vector Wave Propagation in Optical Fibers

Almanee, Mohammad S.
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1488802537164032

Abstract Details

2017, Doctor of Philosophy (Ph.D.), University of Dayton, Electro-Optics.
The planned research is initially motivated by experiments on twisted fiber to examine the polarization of the output pulses. The initial polarization launched into the fiber evolves to a new final state that asymptotically moves to one of two opposite circular polarizations. The initial research was to program the vector wave equations of one and coupled solitons in a twisted fiber including the additional nonlinear terms stimulated Raman scattering and self-steepening. The high-twist fiber eliminates small linear birefringence at the expense of introducing circular birefringence manifested in the group velocities. The vector equations are naturally written in the circular polarization basis. To verify the numerical results, I made a sojourn to INAOE in Puebla, Mexico to run an experiment and compare the results. The numerical compare extremely well with the experimental results. For one soliton, the output polarization of the twisted fiber follows the input with high fluctuations. However, for the coupled soliton input, when the input polarization is close to linear, we observe a very abrupt polarization switch from nearly negative circular, -45° to nearly positive circular, 45° over a very narrow range of the input ellipticities. The literature is full of simulations of super-continuum generation using scalar wave equations, but we have not seen any report on the polarization of the output Supercontinuum light. Again, motivated by the experiments on polarization evolution in optical fibers we wanted to study the vector wave equations at higher incident powers to discover what the polarization state of the output waves are in an extreme nonlinear situation.
Joseph Haus (Advisor)
Partha Banerjee (Committee Member)
Andy Chong (Committee Member)
Youssef Raffoul (Committee Member)
85 p.
Engineering; Optics
Nonlinear optics; soliton pulse; twisted fiber; vector wave propagation; supercontinuum generation

Recommended Citations

Citations

  • Almanee, M. S. (2017). Intense, Ultrashort Pulse, Vector Wave Propagation in Optical Fibers [Doctoral dissertation, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1488802537164032

    APA Style (7th edition)

  • Almanee, Mohammad. Intense, Ultrashort Pulse, Vector Wave Propagation in Optical Fibers. 2017. University of Dayton, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1488802537164032.

    MLA Style (8th edition)

  • Almanee, Mohammad. "Intense, Ultrashort Pulse, Vector Wave Propagation in Optical Fibers." Doctoral dissertation, University of Dayton, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1488802537164032

    Chicago Manual of Style (17th edition)

dayton1488802537164032
607
© 2017, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.