Search Results - "Leisher, P. O."

Highly confined and continuous single-mode operation of self-align photonic crystal oxide VCSEL by Alias, M. S., Shaari, S., Leisher, P. O., Choquette, K. D.

“…In this letter, we report on single-mode operation of originally multi-mode oxide VCSEL by using etched photonic crystal air holes and unique trench structure…”
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Non-uniform longitudinal current density induced power saturation in GaAs-based high power diode lasers by Arslan, S., Swertfeger, R. B., Fricke, J., Ginolas, A., Stölmacker, C., Wenzel, H., Crump, P. A., Patra, S. K., Deri, R. J., Boisselle, M. C., Pope, D. L., Leisher, P. O.

“…The output power of modern 975 nm GaAs-based broad area diode lasers is limited by increasing carrier and photon losses at high bias. We use experiment and…”
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High-Speed Modulation of Index-Guided Implant-Confined Vertical-Cavity Surface-Emitting Lasers by Chen Chen, Leisher, P.O., Kuchta, D.M., Choquette, K.D.

“…An etched photonic crystal (PhC) or holey wedge structure induces index confinement into 850-nm implant-confined vertical-cavity surface-emitting lasers…”
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Mode Control in Photonic Crystal Vertical-Cavity Surface-Emitting Lasers and Coherent Arrays by Siriani, Dominic F., Peun Tan, Meng, Kasten, Ansas M., Leisher, Paul O., Sulkin, Joshua D., Raftery, Jr, James J., Danner, Aaron J., Giannopoulos, Antonios V., Choquette, Kent D.

“…We demonstrate transverse mode control in vertical-cavity surface-emitting lasers (VCSELs) and 2-D VCSEL arrays. By etching a periodic arrangement of circular…”
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Loss-Induced Confinement in Photonic Crystal Vertical-Cavity Surface-Emitting Lasers by Siriani, D.F., Leisher, P.O., Choquette, K.D.

“…Through calculations and comparison with experimental results, we verify that loss introduced by an etched photonic crystal in a vertical-cavity…”
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Photonic Crystal Vertical Cavity Lasers With Wavelength-Independent Single-Mode Behavior by Kasten, A.M., Meng Peun Tan, Sulkin, J.D., Leisher, P.O., Choquette, K.D.

“…We report on two-dimensional photonic crystal designs in vertical-cavity surface-emitting lasers that yield single-transverse mode operation over a wide range…”
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High Modulation Bandwidth Implant-Confined Photonic Crystal Vertical-Cavity Surface-Emitting Lasers by Leisher, P.O., Chen Chen, Sulkin, J.D., Alias, M.S.B., Sharif, K.A.M., Choquette, K.D.

“…High-speed implant-confined photonic crystal vertical-cavity surface-emitting laser (VCSEL) diodes are fabricated and characterized. The maximum achievable…”
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Parametric Study of Proton-Implanted Photonic Crystal Vertical-Cavity Surface-Emitting Lasers by Leisher, P.O., Sulkin, J.D., Choquette, K.D.

“…Photonic crystals with single- and seven-point defects are used to achieve single-fundamental-mode operation of proton-implanted vertical-cavity…”
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Thermal imaging of high power diode lasers subject to back-irradiance by Li, C., Pipe, K. P., Cao, C., Thiagarajan, P., Deri, R. J., Leisher, P. O.

“…CCD-based thermoreflectance imaging and finite element modeling are used to study the two-dimensional (2D) temperature profile of a junction-down broad-area…”
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Longitudinal Current Crowding as Power Limit in High Power 975 nm Diode Lasers by Swertfeger, R. B., Patra, S. K., Deri, R. J., Boisselle, M. C., Pope, D. L., Leisher, P. O., Arslan, S., Fricke, J., Ginolas, A., Stolmacker, C., Wenzel, H., Crump, P. A.

“…Experiment and simulation of high power diode lasers reveals a longitudinally-varying current density profile, due to spatial hole-burning. Current crowding at…”
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Single mode photonic crystal vertical cavity lasers by Danner, Aaron J., Raftery, James J., Leisher, Paul O., Choquette, Kent D.

“…We report the accuracy of the photonic crystal model in describing the characteristics of vertical cavity surface-emitting lasers with lateral optical…”
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Relative phase tuning of coupled defects in photonic crystal vertical-cavity surface-emitting lasers by Lehman, Ann C., Raftery, James J., Danner, Aaron J., Leisher, Paul O., Choquette, Kent D.

“…Evanescent coupling can be achieved by patterning the top facet of a vertical-cavity surface-emitting laser (VCSEL) with a multiple defect photonic crystal…”
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Manufacturable Photonic Crystal Single-Mode and Fluidic Vertical-Cavity Surface-Emitting Lasers by Kasten, A.M., Sulkin, J.D., Leisher, P.O., McElfresh, D.K., Vacar, D., Choquette, K.D.

“…We describe a robust manufacturing process for single-mode photonic crystal (PhC) vertical-cavity surface-emitting lasers (VCSELs). Various PhC designs are…”
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Temperature Analysis of Threshold Current in Infrared Vertical-Cavity Surface-Emitting Lasers by Chen Chen, Leisher, P.O., Allerman, A.A., Geib, K.M., Choquette, K.D.

“…The temperature dependence of threshold current I th in vertical-cavity surface-emitting lasers (VCSELs) can be approximated by the equation I th…”
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Photonic crystal structure effect on the enhancement in the external quantum efficiency of a red LED by Taesung Kim, Leisher, P.O., Danner, A.J., Wirth, R., Streubel, K., Choquette, K.D.

“…The enhancement in external quantum efficiency of a red light-emitting diode (LED) from photonic crystal (PhC) hole patterns was investigated. A red LED was…”
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Loss and Index Guiding in Single-Mode Proton-Implanted Holey Vertical-Cavity Surface-Emitting Lasers by Leisher, P.O., Danner, A.J., Raftery, J.J., Siriani, D., Choquette, K.D.

“…Wedge-shaped holes are fabricated in the top mirror of proton-implanted vertical-cavity surface-emitting lasers (VCSELs). A radially symmetric fill factor…”
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Coherently coupled photonic crystal vertical cavity lasers for communication applications by Choquctte, K.D., Raflery, J.J., Danner, A.J., Leisher, P.O.

“…Optical interconnects will have an important role for internal communication within future spacecrafts as well as intra-communication between satellite…”
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Single-mode 1.3-/spl mu/m photonic crystal vertical-cavity surface-emitting laser by Leisher, P.O., Danner, A.J., Choquette, K.D.

“…We report the use of a photonic crystal in a 1.3-mum vertical-cavity surface-emitting laser to achieve single fundamental-mode operation. A focused ion beam…”
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Photonic crystal vertical cavity lasers and arrays by Choquette, K.D., Danner, A.J., Raftery, J.J., Leisher, P.O.

“…Photonic crystal confinement in vertical cavity surface emitting lasers is demonstrated as a technology for achieving operation in the fundamental transverse…”
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Loss and the accuracy of the photonic crystal model in holey VCSELs by Danner, A.J., Raftery, J.J., Leisher, P.O., Yamaoka, E.A., Lala, S.R., Hwang, M.L., Choquette, K.D.

“…A comprehensive parametric study of VCSELs incorporating etched holes for lateral confinement was conducted. Results from over two thousand devices reveal the…”
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