Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ahmed Al-Samaneh"'
Publikováno v:
Advances in Optical Technologies. 2012:1-8
We report the monolithic integration, fabrication, and electrooptical properties of AlGaAs-GaAs-based transceiver (TRx) chips for 850 nm wavelength optical links with data rates of multiple Gbit/s. Using a single butt-coupled multimode fiber (MMF), l
Publikováno v:
IEEE Photonics Technology Letters. 23:1049-1051
We report the polarization stability and small-signal characteristics of single-polarization single-mode vertical-cavity surface-emitting lasers (VCSELs) emitting at 894.6-nm wavelength for Cs-based miniature atomic clock applications. Polarization c
Publikováno v:
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC.
The work has fabricated flip-chip-bondable VCSELs for hybrid integration with atomic clock microsystems. A shallow surface relief in combination with a surface grating are etched in an extra topmost GaAs quarter-wave antiphase layer in the VCSEL stru
Autor:
Ahmed Al-Samaneh, Christoph Affolderbach, Danijela Miletic, Rodolphe Boudot, Eric Kroemer, Dietmar Wahl, Gaetano Mileti, Rainer Michalzik, Florian Gruet, Laura Bimboes
Publikováno v:
Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2013, 21 (5), pp.5781-5792. ⟨10.1364/OE.21.005781⟩
OPTICS EXPRESS
Optics Express, Optical Society of America-OSA Publishing, 2013, 21 (5), pp.5781-5792. ⟨10.1364/OE.21.005781⟩
OPTICS EXPRESS
We report on the characterization and validation of custom-designed 894.6 nm vertical-cavity surface-emitting lasers (VCSELs), for use in miniature Cs atomic clocks based on coherent population trapping (CPT). The laser relative intensity noise (RIN)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0275ccc52c7a0e5bbb69ef7fdec93fa5
https://hal.archives-ouvertes.fr/hal-00919422
https://hal.archives-ouvertes.fr/hal-00919422
Autor:
Eric Kroemer, Christophe Gorecki, Philippe Abbe, Vincent Giordano, Ravinder Chutani, Rodolphe Boudot, Dietmar Wahl, Nicolas Passilly, Rainer Michalzik, Xiaochi Liu, Ahmed Al-Samaneh, Serge Galliou
Publikováno v:
EFTF Proceeding
European Frequency and Time Forum
European Frequency and Time Forum, Apr 2012, Gothenburg, Sweden. pp.3, ⟨10.1109/EFTF.2012.6502338⟩
European Frequency and Time Forum
European Frequency and Time Forum, Apr 2012, Gothenburg, Sweden. pp.3, ⟨10.1109/EFTF.2012.6502338⟩
International audience; This paper reports the characterization of compact Cs CPT clocks based on a single buffer gas Cs-Ne microcell. Two different experimental set-ups are tested. The first set-up uses an externally-modulated 895 nm Distributed Fee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec8ac2e24128ad3546daa666863b1a7d
https://hal.archives-ouvertes.fr/hal-00744649
https://hal.archives-ouvertes.fr/hal-00744649
Publikováno v:
European Conference and Exhibition on Optical Communication.
The operation and optical crosstalk properties of low-cost AlGaAs-GaAs-based transceiver chips consisting of a VCSEL and a PIN photodetector are presented. Butt-coupled to a single 550 m long OM4-type standard multimode fiber, error-free bidirectiona
Publikováno v:
SPIE Newsroom.
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
There is much recent interest in atomic clocks with low power consumption, ultra-small volume, and long-term instabilities below, e.g., 10−11 over one day. Mobile satellite navigation and the synchronization of communication networks are most promi
Autor:
Gaetano Mileti, Rainer Michalzik, Florian Gruet, L. Bimboes, Dietmar Wahl, Danijela Miletic, Ahmed Al-Samaneh, Christoph Affolderbach
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
We present the spectral characterisation of newly developed VCSEL (Vertical-Cavity Surface-Emitting Laser) diodes emitting around 894 nm [1], in view of their future use in miniature Caesium gas-cell atomic clocks based on Coherent Population Trappin
Autor:
Andreas Strodl, Simeon Renz, Wolfgang Schwarz, Ahmed Al-Samaneh, Rainer Michalzik, Dietmar Wahl
Publikováno v:
SPIE Proceedings.
Vertical-cavity surface-emitting lasers (VCSELs) emitting at 894.6 nm wavelength have been fabricated for Cs-based atomic clock applications. For polarization control, a previously developed technique relying on the integration of a semiconducting su