| In recent years, the fiber photon sources in the spectral region of1.55micron have verywide promising application in communication, detection, and other fields. In this dissertation,the theoretical and experimental studies on1.55micron erbium-ytterbium co-doped double-clad fiber photon sources are presented. The main contents include the following:1. Theoretical studies on erbium-ytterbium co-doped double-clad fiber photon source inDBR configurations have been presented. Theoretical models of erbium-ytterbium co-dopeddouble-clad fiber photon in DBR configurations are developed based on rate equations andpower propagation equations. Using Matlab software, the relationship between the outputcharacteristics of the fiber photon source and the parameters which include the pump power,the reflectivity of the output mirror, and the length of fiber, is discussed.2. Theoretical studies on erbium-ytterbium co-doped double-clad fiber photon source inMOPA configurations have been presented. Theoretical models of erbium-ytterbium co-doped double-clad fiber photon in MOPA configurations are developed based on rateequations and power propagation equations. The relationship between the gain of the fiberphoton source and the parameters which include the pump power, the signal power, and thelength of fiber, is discussed by simulation on OptiSystem software.3. Experimental study on the output power and the spectral properties of erbium-ytterbium co-doped double-clad fiber photon in DBR configurations has been presented. Inthe optimum condition, the maximum output power of2.856W is obtained, with a light-lightefficiency of35.3％and a3dB bandwidth of about0.02nm.4. The output power and the spectral properties of erbium-ytterbium co-doped double-clad fiber photon in MOPA configurations are demonstrated experimentally. The maximumoutput power of erbium-ytterbium co-doped double-clad fiber photon source is1.750W at1550.8nm, and the Gain of the fiber amplifiers is34.6dB. |
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