Results 171 to 180 of about 3,684 (206)
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Journal of Lightwave Technology, 2003
We have developed a microlaser encoder that can detect displacements relative to an external grating scale with a resolution on the order of 10 nm. Its size is only a few tens of a percent of a conventional encoder's. A long-lasting InP laser diode with a wavelength of 1550 nm was bonded, along with several photodiode chips, within an alignment ...
R. Sawada +2 more
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We have developed a microlaser encoder that can detect displacements relative to an external grating scale with a resolution on the order of 10 nm. Its size is only a few tens of a percent of a conventional encoder's. A long-lasting InP laser diode with a wavelength of 1550 nm was bonded, along with several photodiode chips, within an alignment ...
R. Sawada +2 more
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Journal of Modern Optics, 1997
Abstract The cooperative dynamics of a microlaser consisting of two threelevel atoms interacting with a pump field and two quantized cavity modes forming a radiative cascade are studied. Adiabatic elimination of one mode leads to a strong dynamical entanglement between the internal states of the atoms which allows us to study the effects of a cavity ...
Klaus M. Gheri +2 more
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Abstract The cooperative dynamics of a microlaser consisting of two threelevel atoms interacting with a pump field and two quantized cavity modes forming a radiative cascade are studied. Adiabatic elimination of one mode leads to a strong dynamical entanglement between the internal states of the atoms which allows us to study the effects of a cavity ...
Klaus M. Gheri +2 more
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1994
Abstract : This report describes the design, construction and characterization of a 2 dimensional micro laser array. The micro laser array consists of a monolithic pump array, microlenses, and a solid state gain module. Passive q-switching on a single element was also demonstrated on this program.
Phil Hayashida, Michael Wickman
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Abstract : This report describes the design, construction and characterization of a 2 dimensional micro laser array. The micro laser array consists of a monolithic pump array, microlenses, and a solid state gain module. Passive q-switching on a single element was also demonstrated on this program.
Phil Hayashida, Michael Wickman
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Asia Communications and Photonics Conference and Exhibition, 2009
Laser emission from a low number of InGaAs quantum dots embedded in optically and electrically pumped high-Q micropillar laser structures will be presented. The talk will focus on the demonstration of high-β low threshold lasing with threshold currents below 10µA and single quantum dot controlled gain modulation under optical excitation.
S. Reitzenstein +9 more
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Laser emission from a low number of InGaAs quantum dots embedded in optically and electrically pumped high-Q micropillar laser structures will be presented. The talk will focus on the demonstration of high-β low threshold lasing with threshold currents below 10µA and single quantum dot controlled gain modulation under optical excitation.
S. Reitzenstein +9 more
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Physics World, 1989
The idea of carrying a laser while jogging seems to suggest a particularly recherche refinement to what is already a masochistic activity. However, thanks to the portable compact disc player whose small size owes much to the miniature semiconductor diode laser at its heart, many joggers now happily add strains of a musical kind to their other strains ...
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The idea of carrying a laser while jogging seems to suggest a particularly recherche refinement to what is already a masochistic activity. However, thanks to the portable compact disc player whose small size owes much to the miniature semiconductor diode laser at its heart, many joggers now happily add strains of a musical kind to their other strains ...
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Membrane Microlasers and their Integration
Integrated Photonics and Nanophotonics Research and Applications, 2008We present various micro-nanophotonic devices based on the III-V on silicon heterogeneous integration scheme. We particularly focus on microdisk lasers integrated onto silicon wire waveguide, and on “2.5D” photonic crystal based surface emitting ...
Christian Seassal +9 more
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Photonic crystals and microlasers
The 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003Photonic nanostructure devices based on photonic crystals and high index contrast are now being studied worldwide for various applications. The miniaturization of devices and their high density integration are attractive targets. Some simple devices that provide novel high performance and/or unique characteristics are also expected.
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Theory of semiconductor microlasers
1994 Conference on Lasers and Electro-Optics Europe, 1994Summary not available.
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Microlasers and microdisk lasers
OSA Annual Meeting, 1993The buried heterostruction laser is the basic design for many important semiconductor laser applications.
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