| 1. |
- Pang, Xiaodan, Dr., et al.
(författare)
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4 Gbps PAM-4 and DMT Free Space Transmission using a 4.65-pm Quantum Cascaded Laser at Room Temperature
- 2017
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Ingår i: European Conference on Optical Communication, ECOC. - : Institute of Electrical and Electronics Engineers Inc.. - 9781538656242 ; , s. 1-3
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Konferensbidrag (refereegranskat)abstract
- We experimentally demonstrate 4Gbps PAM-4 and DMT transmissions using a quantum cascaded laser (QCL) emitting at mid-wavelength infrared of 4.65μm and a commercial infrared photovoltaic detector. The QCL is directly modulated and operated at room temperature with Peltier Cooling.
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| 2. |
- Parillaud, O., et al.
(författare)
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Multi-regrowth steps for the realization of buried single ridge and μ-stripes quantum cascade lasers
- 2013
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Ingår i: 2013 International Conference on Indium Phosphide and Related Materials (IPRM). - : IEEE. - 9781467361309 ; , s. 6562597-
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Konferensbidrag (refereegranskat)abstract
- We report on the realization of buried single ridge and μ-stripes quantum cascade lasers using HVPE and MOVPE regrowth steps of semi-insulating InP:Fe and Si doped layers. We present here the preliminary results obtained on these devices. The reduction of the thermal resistance achieved using semi-insulating InP:Fe for regrowth planarization and μ-stripe arrays approaches are shown and performance perspectives are addressed.
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| 3. |
- Franckie, Martin, et al.
(författare)
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Comparative analysis of quantum cascade laser modeling based on density matrices and non-equilibrium Green's functions
- 2014
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 105:10
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Tidskriftsartikel (refereegranskat)abstract
- We study the operation of an 8.5 mu m quantum cascade laser based on GaInAs/AlInAs lattice matched to InP using three different simulation models based on density matrix (DM) and non-equilibrium Green's function (NEGF) formulations. The latter advanced scheme serves as a validation for the simpler DM schemes and, at the same time, provides additional insight, such as the temperatures of the sub-band carrier distributions. We find that for the particular quantum cascade laser studied here, the behavior is well described by simple quantum mechanical estimates based on Fermi's golden rule. As a consequence, the DM model, which includes second order currents, agrees well with the NEGF results. Both these simulations are in accordance with previously reported data and a second regrown device. (C) 2014 AIP Publishing LLC.
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| 4. |
- Puerta, Rafael, et al.
(författare)
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NR Conformance Testing of Analog Radio-over-LWIR FSO Fronthaul link for 6G Distributed MIMO Networks
- 2023
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Ingår i: Opt. Fiber Commun. Conf. Exhib., OFC - Proc.. - : Institute of Electrical and Electronics Engineers Inc..
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Konferensbidrag (refereegranskat)abstract
- We experimentally test the compliance with 5G/NR 3GPP technical specifications of an analog radio-over-FSO link at 9 μm. The ACLR and EVM transmitter requirements are fulfilled validating the suitability of LWIR FSO for 6G fronthaul. © 2023 The Author(s).
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