Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Michel Papuchon"'
Publikováno v:
IEEE Journal of Quantum Electronics. 29:2313-2318
Mid-infrared ( approximately 10 mu m) electrorefractive effects of intersubband transitions in step GaAs/GaAlAs quantum wells are experimentally analyzed. A method for studying infrared electrorefraction of a two-dimensional structure via the Stark e
Autor:
D. Delacourt, C. Kazmierski, R. Blondeau, M. A. di Forte-Poisson, Michel Papuchon, N. Herschkorn, Christian Brylinski
Publikováno v:
Optics letters. 12(11)
We give experimental results for amplitude and phase modulation by free-carrier injection in planar and rib waveguides at a wavelength of 10.6 microm. These waveguides have been formed by metal-organic chemical-vapor deposition of InP and GalnAs laye
Publikováno v:
1993 (5th) International Conference on Indium Phosphide and Related Materials.
The fabrication and characteristics of the monolithic integration of a GaInAsP-InP 2 /spl times/ 2 switch with optical amplifiers are reported. The switch device is a current injection tuned directional coupler, which can be designed for wavelength a
Publikováno v:
Applied Physics Letters. 63:2514-2516
Efficient midinfrared electro‐optical effects based on intersubband transitions in doped double quantum wells are demonstrated. The system is based on field‐induced perturbations of the wave functions associated with the excited and interacting s
Publikováno v:
Applied Physics Letters. 62:1907-1909
We present an experimental study of the intersubband electroabsorption and electrorefraction of a coupled asymmetrical quantum well structure. The field induced carrier transfer from a wide well to a narrow well yields interesting electro‐optical p
Publikováno v:
Electronics Letters. 29:124-126
1.55 μm GaInAsP-InP optical amplifiers monolithically integrated with a directional coupler provide 0 dB fibre to fibre insertion loss at 140 mA of injected current in the amplifier and a -25 dBm input optical power. The crosstalk and extinction rat
Autor:
Nakita Vodjdani, Borge Vinter, Vincent Berger, D. Delacourt, Emmanuel Dupont, Michel Papuchon
Publikováno v:
Applied Physics Letters. 61:2072-2074
In this letter, we present a new bicolor infrared modulator using intersubband absorptions in quantum wells. The structure consists of two wells of different widths on either side of a reservoir of electrons. Depending on the sign of the electric fie
Publikováno v:
SPIE Proceedings.
The CNES (Centre National d'Etudes Spatiales) established the laser system characteristics for Mars-Earth spatial communications using the Pulse Position Modulation (PPM) technique. Today, diode-pumped solid-state lasers are under intense research an
Publikováno v:
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 1994, 65 (7), pp.804-806. ⟨10.1063/1.112237⟩
Applied Physics Letters, American Institute of Physics, 1994, 65 (7), pp.804-806. ⟨10.1063/1.112237⟩
International audience; A GaAs/AlGaAs vertical-cavity surface-emitting laser was used to seed a titanium-sapphire laser oscillator. Both lasers were pumped synchronously by the same frequency-doubled Nd:YAG laser in the nanosecond range. Even at low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7565f8f04d8afa3ed5e2bb1d9efe968b
https://hal-iogs.archives-ouvertes.fr/hal-00701662/document
https://hal-iogs.archives-ouvertes.fr/hal-00701662/document
Autor:
Pál Koppa, Jean-Louis Oudar, R. Kuszelewicz, J. P. Schnell, J. P. Pocholle, P. Chavel, Michel Papuchon, J. Raffy
Publikováno v:
16th Congress of the International Commission for Optics: Optics as a Key to High Technology.