Search Results - "Ackerman, D. A."

Analysis of risk factors associated with prostate cancer extension to the surgical margin and pelvic node metastasis at radical prostatectomy by Ackerman, D A, Barry, J M, Wicklund, R A, Olson, N, Lowe, B A

“…We analyzed data from 107 consecutive patients with clinical stage B prostate cancer in an attempt to identify those at high risk for having involved margins…”
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Low-cost athermal wavelength-locker integrated in a temperature-tuned single-frequency laser package by Ackerman, D.A., Paget, K.M., Schneemeyer, L.F., Ketelsen, L.J.-P., Warning, F.W., Sjolund, O., Graebner, J.E., Kanan, A., Raju, V.R., Eng, L.E., Schaeffer, E.D., Van Emmerik, P.

“…A package-integrated, compact, low-cost, athermal wavelength locker is introduced. It uses a novel etalon material, Schnaelite, to reduce environmental…”
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Characterizing residual reflections within semiconductor lasers, integrated sources, and coupling optics by Ackerman, D.A., Zhang, L.M., Ketelsen, L.J.-P., Johnson, J.E.

“…We describe a method for analyzing reflections within or near semiconductor lasers and more complicated integrated sources. Through Fourier transformation of…”
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Second- and third-order harmonic distortion in DFB lasers by Liming Zhang, Ackerman, D.A.

“…The second- and third-order harmonic distortion in distributed feedback (DFB) lasers is simulated using a time domain large signal dynamic model. The effects…”
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Efficient coupling of a semiconductor laser to an optical fiber by means of a tapered waveguide on silicon by SHANI, Y, HENRY, C. H, KISTLER, R. C, ORLOWSKY, K. J, ACKERMAN, D. A

“…A Si3N4 core waveguide, matched to a laser mode, is adiabatically tapered into a SiO2:P core waveguide, matched to a fiber mode. When used to couple the light…”
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Death in the pediatric intensive care unit by Ackerman, A D

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Partial monosomy 21, diminished activity of superoxide dismutase, and pulmonary oxygen toxicity by Ackerman, A D, Fackler, J C, Tuck-Muller, C M, Tarpey, M M, Freeman, B A, Rogers, M C

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The role of axially nonuniform carrier density in altering the TE-TE gain margin in InGaAsP-InP DFB lasers by Ketelsen, L.J.P., Hoshino, I., Ackerman, D.A.

“…Axial nonuniformities in the carrier density profile of 1.55 mu m capped-mesa-buried-heterostructure distributed-feedback (CMBH-DFB) InGaAsP-InP diode lasers…”
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Compact hybrid resonant optical reflector lasers with very narrow linewidths by ACKERMAN, D. A, DAHBURA, M. I, SHANI, Y, HENRY, C. H, KISTLER, R. C, KAZARINOV, R. F, KUO, C. Y

“…Hybrid resonant optical reflector lasers of less than 1 cm length are described. These external cavity devices operate with very narrow linewidth approaching…”
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False diagnosis of renal transplant urinary leakage on scintigraphy with mercaptoacetyltriglycine by Ackerman, D A, Barry, J M

“…99mTechnetium-mercaptoacetyltriglycine (99mTc-MAG-3) has rapidly become the best isotope for transplant renal scintigraphy because of the excellent anatomical…”
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Reliability, validity, and temporal stability of the geriatric depression scale in hospitalized elderly by Lyons, J S, Strain, J J, Hammer, J S, Ackerman, A D, Fulop, G

“…The reliability, validity, and temporal stability of the Geriatric Depression Scale (GDS) were studied in sixty-nine elderly patients who had their broken hips…”
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Static and dynamic characteristics of DFB lasers with longitudinal nonuniformity by Kuo, C.Y., Lin, M.S., Wang, S.J., Ackerman, D.A., Ketelsen, L.J.P.

“…Static and dynamic characteristics of 1.55- mu m distributed-feedback (DFB) lasers with longitudinal nonuniformity in optical intensity and carrier density are…”
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The impact of coexisting depression and timing of psychiatric consultation on medical patients' length of stay by Ackerman, A D, Lyons, J S, Hammer, J S, Larson, D B

“…Patients with a psychiatric disorder are known to make greater use of medical resources than patients without a psychiatric condition, but the impact of highly…”
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Experimental and theoretical evaluation of the CW suppression of TE side modes in conventional 1.55 mu m InP-InGaAsP distributed feedback lasers by Ketelsen, L.J.P., Hoshino, I., Ackerman, D.A.

“…A study is made of the factors that influence the suppression of the second TE Bragg mode in conventional 1.55 mu m capped-mesa-buried-heterostructure…”
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Continuous nebulization of inhaled beta-agonists for status asthmaticus in children: a cost-effective therapeutic advance? by Ackerman, A D

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Influence of laser phase noise on 400-Mbit/s coherent optical DPSK system by KUO, C.-Y, DELAVAUX, J.-M. P, ACKERMAN, D. A, TZENG, D. L

“…The influence of laser phase noise on a 400-Mbit/s optical DPSK system is experimentally investigated with linewidths ranging from 1.2 MHz to 8 MHz. This range…”
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InGaAsP laser with semi-insulating current confining layers by DUTTA, N. K, ZILKO, J. L, CELLA, T, ACKERMAN, D. A, SHEN, T. M, NAPHOLTZ, S. G

“…The fabrication and performance characteristics of a InGaAsP laser structure with semi-insulating current confining layers are reported. The semi-insulating…”
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Retention of critical care staff by Ackerman, A D

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Fully stabilized electroabsorption-modulated tunable DBR laser transmitter for long-haul optical communications by Johnson, J.E., Ketelsen, L.J.-P., Ackerman, D.A., Liming Zhang, Hybertsen, M.S., Glogovsky, K.G., Lentz, C.W., Asous, W.A., Reynolds, C.L., Geary, J.M., Kamath, K.K., Ebert, C.W., Park, M., Przybylek, G.J., Leibenguth, R.E., Broutin, S.L., Stayt, J.W., Dreyer, K.F., Peticolas, L.J., Hartman, R.L., Koch, T.L.

“…We report on a fully functional 2.5-Gb/s electroabsorption (EA)-modulated wavelength-selectable laser module meeting all long-haul transmission requirements…”
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Experimental demonstration of composite-packet-switched WDM network by Boroditsky, M., Frigo, N.J., Lam, C.F., Dreyer, K.F., Ackerman, D.A., Johnson, J.E., Ketelsen, L.J.P., Antao Chen, Smiljanic, A.

“…We propose and demonstrate experimentally a novel technique for packet switching on a ring network. We use the wavelength dimension to increase the…”
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