Author Affiliations
1 LTCI Télécom Paris, Institut Polytechnique de Paris, Palaiseau 91120, France
2 mirSense, Centre d’intégration NanoInnov, Palaiseau 91120, France
3 Institute for Solid State Electronics, TU Wien, 1040 Vienna, Austria
4 Currently with CREOL, College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA
5 Institut d’Electronique et des Systèmes, Université de Montpellier, CNRS UMR 5214, Montpellier 34000, France
6 Nanoplus Nanosystems and Technologies GmbH, 97218 Gerbrunn, Germany
7 Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico 87106, USA
Space-to-ground high-speed transmission is of utmost importance for the development of a worldwide broadband network. Mid-infrared wavelengths offer numerous advantages for building such a system, spanning from low atmospheric attenuation to eye-safe operation and resistance to inclement weather conditions. We demonstrate a full interband cascade system for high-speed transmission around a wavelength of 4.18 µm. The low-power consumption of both the laser and the detector in combination with a large modulation bandwidth and sufficient output power makes this technology ideal for a free-space optical communication application. Our proof-of-concept experiment employs a radio-frequency optimized Fabry–Perot interband cascade laser and an interband cascade infrared photodetector based on a type-II InAs/GaSb superlattice. The bandwidth of the system is evaluated to be around 1.5 GHz. It allows us to achieve data rates of 12 Gbit/s with an on–off keying scheme and 14 Gbit/s with a 4-level pulse amplitude modulation scheme. The quality of the transmission is enhanced by conventional pre- and post-processing in order to be compatible with standard error-code correction.
Photonics Research
2023, 11(4): 582
Author Affiliations
1 Télécom Paris, Institut Polytechnique de Paris, LTCI, Palaiseau, France
2 mirSense, Centre d’integration NanoInnov, Palaiseau France
3 ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Laboratoire de Physique de l’École Normale Supérieure, Paris, France
4 University of Central Florida, CREOL, College of Optics and Photonics, Orlando, Florida, United States
5 University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Free-space optical communication is a very promising alternative to fiber communication systems, in terms of ease of deployment and costs. Midinfrared light has several features of utter relevance for free-space applications: low absorption when propagating in the atmosphere even under adverse conditions, robustness of the wavefront during long-distance propagation, and absence of regulations and restrictions for this range of wavelengths. A proof-of-concept of high-speed transmission taking advantage of intersubband devices has recently been demonstrated, but this effort was limited by the short-distance optical path (up to 1 m). In this work, we study the possibility of building a long-range link using unipolar quantum optoelectronics. Two different detectors are used: an uncooled quantum cascade detector and a nitrogen-cooled quantum well-infrared photodetector. We evaluate the maximum data rate of our link in a back-to-back configuration before adding a Herriott cell to increase the length of the light path up to 31 m. By using pulse shaping, pre- and post-processing, we reach a record bitrate of 30 Gbit s - 1 for both two-level (OOK) and four-level (PAM-4) modulation schemes for a 31-m propagation link and a bit error rate compatible with error-correction codes.
free-space communication Stark-effect external modulator midinfrared photonics intersubband technology unipolar quantum devices 
Advanced Photonics
2022, 4(5): 056004
Author Affiliations
1 LTCI, Télécom Paris, Institut Polytechnique de Paris, Palaiseau, France
2 mirSense, Centre d’Intégration NanoInnov, Palaiseau, France
3 University of California Los Angeles, Fang Lu Mesoscopic Optics and Quantum Electronics Laboratory, Los Angeles, California, United States
4 Southwest University, College of Electronic and Information Engineering, Chongqing, China
5 Technische Universität Darmstadt, Darmstadt, Germany
6 University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
We demonstrate experimentally that mid-infrared quantum cascade lasers (QCLs) operating under external optical feedback exhibit extreme pulses. These events can be triggered by adding small amplitude periodic modulation, with the highest success rate for the case of a pulse-up excitation. These findings broaden the potential applications for QCLs, which have already been proven to be a semiconductor laser of interest for spectroscopic applications and countermeasure systems. The ability to trigger extreme events paves the way for optical neuron-like systems where information propagates as a result of high intensity bursts.
extreme pulses quantum cascade lasers nonlinear dynamics mid-infrared photonics 
Advanced Photonics
2020, 2(6): 066001

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。