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學術出版;;Publications

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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

Access type: Open accessAuthor: search.filters.author.CHANG, CS

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Now showing 1 - 6 of 6
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    VOLTAGE-CONTROLLED 3 TERMINAL GAAS NEGATIVE DIFFERENTIAL RESISTANCE DEVICE USING N+-I-P+-I-N+ STRUCTURE
    (1990-06-01)
    YARN, KF
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    WANG, YH
    ;
    CHANG, CY
    ;
    CHANG, CS
    ;
    電控工程研究所
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    ELECTROOPTIC SAMPLING OF OPTOELECTRONICALLY PHASE-LOCKED 10.0 GHZ MICROWAVE SIGNALS USING SEMICONDUCTOR-LASER DIODES
    (1991-08-29)
    WU, HH
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    CHANG, CS
    ;
    PAN, CL
    ;
    光電工程學系
    ;
    電信研究中心
    10.0 GHz microwave signals optoelectronically phase locked by a laser-diode-based GaAs: Cr photoconductive harmonic mixer (lambda = 0.81-mu-m) have been measured noninvasively using the electro-optic sampling technique with a pin-switched InGaAsP laser diode (lambda = 1.3-mu-m).
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    BUILDUP OF STEADY-STATE PICOSECOND PULSES IN AN ACTIVELY MODE-LOCKED LASER-DIODE ARRAY
    (1991-09-01)
    KUO, JC
    ;
    CHANG, CS
    ;
    PAN, CL
    ;
    交大名義發表
    ;
    光電工程學系
    We have studied experimentally the temporal and spectral characteristics of an actively mode-locked laser-diode array in an external cavity as it evolves to the steady state. It is found that the buildup time to steady-state picosecond pulses takes less than 45 round trips. The number of clusters of the longitudinal-mode spectrum reduces during the evolution and finally approaches a steady-state spectral distribution with the pulse energy mainly distributed among a few clusters near the line center.
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    PULSE-FORMING DYNAMICS OF A CW PASSIVELY MODE-LOCKED TI-SAPPHIRE DDI LASER
    (1992-03-01)
    KUO, JC
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    SHIEH, JM
    ;
    HWANG, CD
    ;
    CHANG, CS
    ;
    PAN, CL
    The dynamics of pulse formation in a cw passively mode-locked Ti:sapphire/DDI laser has been investigated. It is found that the time required for the circulating energy in the cavity to build up and bleach the dye absorber is approximately 140-mu-s. A further 230-mu-s is required for the buildup of steady-state picosecond pulses. Concurrently the laser output spectrum initially narrows in the cw regime, begins to broaden as the laser becomes modulated, and finally establishes the steady-state spectral distribution.
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    OPTOELECTRONIC PHASE-TRACKING AND WAVE-FORM DISPLAY OF MICROWAVE SIGNALS UP TO 8 GHZ USING GAIN-SWITCHED LASER-DIODES
    (1994-05-15)
    WU, HH
    ;
    WANG, CL
    ;
    LIN, GR
    ;
    CHANG, CS
    ;
    PAN, CL
    We present a new, more versatile scheme for maintaining phase coherence between optical probe pulses and microwave signals under test in a laser-diode-based optoelectronic sampling system. This approach takes advantage of the relative ease of changing the repetition rate of the gain-switched laser diode (GSLD). The microwave signal to be sampled is used as the clock signal for phase-locking of a voltage controlled-oscillator (VCO) which drives the GSLD. Phase-tracking and display of waveforms at frequencies up to 8 GHz have been realized. It is also shown that lower phase noise sidebands for the phase-locked VCO can be realized by locking the higher harmonics of the laser pulse to the microwave clock.
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    PULSE BUILDUP DYNAMICS OF AN ACTIVELY MODE-LOCKED LASER-DIODE ARRAY IN THE EXTERNAL-CAVITY
    (1995-03-01)
    WANG, CL
    ;
    KUO, JC
    ;
    CHANG, CS
    ;
    PAN, CL
    ;
    交大名義發表
    Dynamic pulse evolution characteristics of an actively mode-locked laser diode array in the external cavity have been investigated, Numerical calculations based on modified traveling-wave rate equations reproduce experimentally observed pulse and spectral width evolution and show that the buildup time is about 45 round-trips, We have also performed a theoretical analysis to understand which of the laser operating parameters would affect the buildup dynamics, It is shown that either higher de bias current or larger radiative recombination coefficient (which is inversely proportional to the excited-state lifetime) will render the laser exhibiting shorter steady-state pulse width and faster evolution to the steady state, Other parameters affecting the buildup, but to a lesser extent, include the radio-frequency (RF) modulation current, spontaneous emission coefficient, and gain coefficient, The power reflectivities of the output mirror and the antireflection coated diode facet, on the other hand, have little effect on the pulse width and buildup time for single pulse generation.