Search Results - "Jan, W. Y."

An LMI-based nonlinear attitude control approach by Show, L.-L., Juang, J.-C., Jan, Y.-W.

“…This paper presents a nonlinear control law for large-angle attitude control of spacecraft. For the ROCSAT-3 spacecraft, a highly accurate and robust attitude…”
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Mode-locking ultrafast solid-state lasers with saturable Bragg reflectors by Tsuda, S., Knox, W.H., Cundiff, S.T., Jan, W.Y., Cunningham, J.E.

“…We discuss mode-locking of low-gain solid-state lasers using a semiconductor saturable Bragg reflector structure. This recently developed low-loss mode-locking…”
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Minimum-time spacecraft maneuver using sliding-mode control by Jan, Y.W., Chiou, J.C.

“…The purpose of this paper is to present a sliding mode control method that can be used to perform a spacecraft large angle maneuver with minimum time. An…”
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Active control for initial attitude acquisition using magnetic torquers by Jan, Y.W., Tsai, J.-R.

“…This paper presents an active control design for spacecraft initial attitude acquisition (IAA) by using two magnetic torquers on the X and Y body axes. A very…”
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Short cavity erbium/ytterbium fiber lasers mode-locked with a saturable Bragg reflector by Collings, B.C., Bergman, K., Cundiff, S.T., Tsuda, S., Kutz, J.N., Cunningham, J.E., Jan, W.Y., Koch, M., Knox, W.H.

“…We present short cavity erbium/ytterbium fiber lasers that are passively mode-locked with a saturable Bragg reflector. The lasers produce sub-500-fs pulses at…”
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Attitude control system for ROCSAT-3 microsatellite: a conceptual design by Jan, Y.W., Chiou, J.C.

“…The ROCSAT-3 attitude control subsystem is conceptually designed to meet the weight and power constraints of a microsatellite. Attractive features of the…”
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GaAs 850 nm modulators solder-bonded to silicon by Goossen, K.W., Cunningham, J.E., Jan, W.Y.

“…GaAs/AlGaAs p-i-n multiple-quantum-well modulators solder-bonded to a silicon substrate are reported. The GaAs substrate is then chemically removed to allow…”
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Measurement of effective drift velocities of electrons and holes in shallow multiple-quantum-well p-i-n modulators by Ching-Mei Yang, Canoglu, E., Garmire, E., Goossen, K.W., Cunningham, J.E., Jan, W.Y.

“…We present results on carrier transport in shallow multiple-quantum-well GaAs-Al/sub x/Ga/sub 1-x/As p-i-n diodes (x=0.02, 0.04, 0.08) at various bias…”
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On the operational and manufacturing tolerances of GaAs-AlAs MQW modulators by Goossen, K.W., Cunningham, J.E., Jan, W.Y., Leibenguth, R.

“…We approach the question of optimization of surface-normal p-i(multiquantum-well, MQW)-n modulators from the viewpoint of investigating their tolerance to…”
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Unloading law for a LEO spacecraft with two-gimbals solar array by Jan, Y.W, Chiou, J.C

“…The purpose of this paper is to present a modified cross-product unloading law that can be used to provide an open-loop compensation control design to…”
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Fast escape of photocreated carriers out of shallow quantum wells by Feldmann, J., Goossen, K. W., Miller, D. A. B., Fox, A. M., Cunningham, J. E., Jan, W. Y.

“…We report that at room temperature the field-induced escape of photogenerated carriers out of shallow GaAs/AlxGa1−xAs multiple quantum wells is as fast as for…”
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Exciton saturation in electrically biased quantum wells by FOX, A. M, MILLER, D. A. B, LIVESCU, G, CUNNINGHAM, J. E, HENRY, J. E, JAN, W. Y

“…We have measured the heavy hole excitation saturation intensity in GaAs/AlGaAs quantum wells as a function of applied electric field and AlGaAs barrier design…”
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Excitonic electroabsorption in extremely shallow quantum wells by GOOSSEN, K. W, CUNNINGHAM, J. E, JAN, W. Y

“…We report the remarkable observation of strong room-temperature excitonic features in the absorption spectra of GaAs-AlxGa1−xAs quantum wells (QWs) for values…”
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The AMOEBA switch: an optoelectronic switch for multiprocessor networking using dense-WDM by Krishnamoorthy, A.V., Ford, J.E., Kiamilev, F.E., Rozier, R.G., Hunsche, S., Goossen, K.W., Tseng, B., Walker, J.A., Cunningham, J.E., Jan, W.Y., Nuss, M.C.

“…We present a single-chip asynchronous multiprocessor optoelectronic bit-sliced arrayed (AMOEBA) crossbar switch. The AMOEBA switch addresses the challenge to…”
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High-speed optoelectronic VLSI switching chip with >4000 optical I/O based on flip-chip bonding of MQW modulators and detectors to silicon CMOS by Lentine, A.L., Goossen, K.W., Walker, J.A., Chirovsky, L.M.F., D'Asaro, L.A., Hui, S.P., Tseng, B.J., Leibenguth, R.E., Cunningham, J.E., Jan, W.Y., Kuo, J.-M., Dahringer, D.W., Kossives, D.P., Bacon, D.D., Livescu, G., Morrison, R.L., Novotny, R.A., Buchholz, D.B.

“…We present the first high-speed optoelectronic very large scale integrated circuit (VLSI) switching chip using III-V optical modulators and detectors flip-chip…”
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Electroabsorption in ultranarrow-barrier GaAs/AlGaAs multiple quantum well modulators by Goossen, K. W., Cunningham, J. E., Jan, W. Y.

“…We measure electroabsorption in GaAs/AlGaAs multiple quantum well modulators with ultranarrow barriers so as to maximize the overall absorption coefficient by…”
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Stacked-diode electroabsorption modulator by Goossen, K.W., Cunningham, J.E., Jan, W.Y.

“…We present a n-i (multiple quantum well [MQW])-p-i(MQW)-n device wherein the n contacts are tied together and biased with respect to the p contact to form an…”
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Optical bandwidth considerations in p-i-n multiple quantum-well modulators by Goossen, K.W., Cunningham, J.E., Jan, W.Y.

“…We investigate the optical bandwidth of p-i(multiple quantum well [MQW])-n modulators employing various MQW designs. The optical bandwidth translates directly…”
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Independence of absorption coefficient-linewidth product to material system for multiple quantum wells with excitons from 850 nm to 1064 nm by Goossen, K.W., Santos, M.B., Cunningham, J.E., Jan, W.Y.

“…The authors have measured the absorption coefficient ( alpha ) and linewidth ( Delta ) of the excitons of GaAs/AlGaAs and strain-balanced InGaAs/GaAsP…”
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Clocked-sense-amplifier-based smart-pixel optical receivers by Woodward, T.K., Krishnamoorthy, A.V., Goossen, K.W., Walker, J.A., Cunningham, J.E., Jan, W.Y., Chirovsky, L.M.F., Hui, S.P., Tseng, B., Kossives, D., Dahringer, D., Bacon, D., Leibenguth, R.E.

“…We introduce the concept of synchronous smart-pixel optical receivers, and present the first use of a clocked-sense amplifier as a smart-pixel optical…”
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