Browsing by Author "Chang, Hon-Chieh"

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A simple group velocity dispersion measurement method by RF spectral periodic pulse timing variation characterization
(2009)
Liu, Shiou-Fong
;
Jyu, Siao-Shan
;
Chang, Hon-Chieh
;
Hsiang, Wei-Wei
;
Lai, Yinchieh
By measuring the dispersion-induced periodic pulse timing variation with a wavelength-swept pulse light source and a RF spectrum analyzer, the fiber group velocity dispersion can be determined with excellent accuracy. (C)2009 Optical Society of America
Laser Dynamics of a 10 GHz 0.55 ps Asynchronously Harmonic Modelocked Er-Doped Fiber Soliton Laser
(2010-03-01)
Hsiang, Wei-Wei
;
Chang, Hon-Chieh
;
Lai, Yinchieh
;
光電工程學系
;
Department of Photonics
Laser dynamics of a 10 GHz 0.55 ps asynchronously harmonic modelocked Er-doped fiber soliton laser are investigated both theoretically and experimentally. Theoretical analyses based on the master equation model solved by the variational method have indicated that all the pulse parameters of the laser output will exhibit complicated slow periodic variations in the asynchronous soliton modelocking (ASM) mode. New experimental methods based on analyzing directly the RF spectra of the ASM laser output have been developed to accurately determine the sinusoidal variation of the pulse timing and the pulse center wavelength for the first time. It is found that the pulse center wavelength variation can be as large as 1 nm half-peak-to-peak and the pulse timing variation can be as large as 3 ps. The consistency among all the experimental data and theoretical prediction is carefully examined and the results indicate that the ASM pulse dynamics observed experimentally are in good agreement with those obtained from the theoretical analyses.
Laser Dynamics of Asynchronously Modelocked Fiber Soliton Lasers
(2008-01-01)
Hsiang, Wei-Wei
;
Chen, Ye-Chen
;
Chang, Hon-Chieh
;
Chen, Jye-Hong
;
Lai, Yinchieh
Laser dynamics of asynchronously modelocked Er-fiber soliton lasers is investigated theoretically and experimentally. The pulse parameters are found to exhibit complicated slow periodic variations and can be examined experimentally by analyzing the RF spectra. (C)2008 Optical Society of America