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Experimental Study Of The Cascade Four-wave Mixing

Posted on:2012-11-02Degree:MasterType:Thesis
Country:ChinaCandidate:H B SunFull Text:PDF
GTID:2248330392955018Subject:Optics
Abstract/Summary:PDF Full Text Request
Four-wave mixing (FWM) in fibers is a nonlinear effect of lightwaves, which aregenerated via the real part of the third-order susceptibility. New lightwaves aregenerated at other wavelength due to different two or three waves interacting witheach other. The new frequencies induced by highly efficient FWM are very useful.They can be used for designing various novel optical apparatus such as all-waveconverter, wavelength-division multiplexer, optical phase conjugator, dispersioncompensator, and entangled two-photon sources which are mainly used in quantumcommunications. Photonic-crystal fibers can offer tailored dispersion and highnonlinear coefficient, thus there are more advantages for studying FWM based onphotonic-crystal fibers material. This paper focuses on the study of cascaded FWM inhigh-nonlinearity fibers.This paper includes the main contents listed as following.1. In the first chapter, the origin and principles of FWM are described briefly.And then we present the important application of FWM in some fields. In this chapter,the photonic-crystal fiber is described briefly, including the concept and themechanism of guiding wave.2. In the second chapter, the seed source of cascaded FWM is studied. Thissource based on the scheme of High-Birefringence fiber loop mirror is mainlydiscussed. In this part, the theoretical analysis and numerical simulation of theHigh-Birefringence fiber loop mirror are accomplished. And then, we scheme theexperimental setup of the seed source based on the High-Birefringence fiber loopmirror.3. In the third chapter, the amplification of the seed source of cascaded FWM isstudied. This amplification system mainly based on erbium/ytterbium co-dopeddouble-cladding fiber is proposed. In this part, we firstly study the development of theerbium/ytterbium co-doped double-cladding fiber amplifier. And then, the theoreticalanalysis of the erbium/ytterbium co-doped double-cladding fiber is achieved,and the equations of velocity propagation and power propagation are derived. At last, wescheme the experimental setup and analyses the experimental results.4. The theoretical analysis of cascaded FWM is achieved. The experimentalscheme is accomplished and the experimental results are analyzed.5. In the last chapter, we summarize the work of this paper and then explore thedevelopment in the future. Finally, we give the plan of the next work.
Keywords/Search Tags:cascaded four-wave mixing, birefringent fiber loop mirror, erbium/ytterbium co-doped double-cladding fiber amplifier
PDF Full Text Request
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