Josu Amorebieta, Ángel Ortega-Gómez, Rubén Fernández, José Enrique Antonio-López, Axel Schülzgen, Joseba Zubia, Rodrigo Amezcua-Correa, Gaizka Durana, Joel Villatoro
In this paper, we report on a multicore fiber-based (MCF) temperature sensor that operates in a wide thermal range and that is robustly packaged to withstand harsh environments. To develop the sensor, the fundamentals concerning the effect of temperature on such fibers have been analyzed in detail to predict the most temperature sensitive MCF geometry. Thanks to it, the device, which operates in reflection mode and consists of a short segment of strongly coupled MCF fusion spliced to a standard single mode fiber, shows higher sensitivity than other devices with identical configuration. Regarding its packaging, it consists of an inner ceramic and two outer metallic tubes to provide rigidity and protection against impacts or dirt. The device was calibrated for a thermal range from 25 C to 900 C and a K-type thermocouple was used as reference. Our results suggest that the manufactured optical thermometer is as accurate as the electronic one, reaching a sensitivity up to 29.426 pm/C with the advantage of being passive, compact and easy to fabricate and interrogate. Therefore, we believe this device is appealing for industrial applications that require highly sensitive temperature sensing in very demanding environments, and that the analysis included in this work could be analogously applied to develop sensitivity-optimized devices for other parameters of interest.
Fiber Link Stabilization with a Multicore Fiber Amplifier
University of Colorado Boulder（科罗拉多大学博尔德分校）；National Institute of Standards and Technology（美国国家标准与技术研究院）；KDDI Research, Inc.（KDDI研究所）；Sumitomo Electric Industries, Ltd.（住友电气工业株式会社）；Nokia Bell Labs（诺基亚贝尔实验室）
Enabling a multifunctional telecommunications fiber optic network: Ultrastable optical frequency transfer and attosecond timing in deployed multicore fiber
Novosibirsk State University（新西伯利亚国立大学）；Federal Research Center for Information and Computational Technologies（信息与计算技术联邦研究中心）；School of Physics and Engineering, ITMO University（ITMO大学物理与工程学院）
Telecom Compatibility Validation of Quantum Key Distribution Co-existing with 112 Gbps/λ/core Data Transmission in Non-Trench and Trench-Assistant Multicore Fibers
Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle
National Institute of Standards and Technology（美国国家标准与技术研究院）；University of Colorado Boulder（科罗拉多大学博尔德分校）；Nokia Bell Labs（诺基亚贝尔实验室）；Sumitomo Electric Industries, Ltd.（住友电气工业株式会社）；University of Colorado, Boulder（科罗拉多大学博尔德分校）
Sub-picosecond inter-core skew characterization in multicore fibers via Hong--Ou--Mandel interference
Universidad de Concepción（康塞普西翁大学）；ANID – Millennium Science Initiative Program – Millennium Institute for Research in Optics, Universidad de Concepción（智利国家研究署-千年科学倡议计划-康塞普西翁大学光学研究千年研究所）；Universidade Federal de Santa Catarina（圣卡塔琳娜联邦大学）；ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology（ICFO-光子科学研究所，巴塞罗那科学技术研究所）；Luxquanta Technologies S.L.（Luxquanta科技有限公司）；Sapienza Università di Roma（罗马大学）；Universidad Católica de la Santísima Concepción（圣母无原罪天主教大学）
Mode-tunable inter-core coupling of photon-number-resolved quantum light in a telecom multicore fiber
Department of Physics, University at Buffalo, The State University of New York（纽约州立大学布法罗分校物理系）；Science and Technology Division, Corning Research and Development Corporation（康宁研发公司科学与技术部）
Lensless multicore-fiber microendoscope for real-time tailored light field generation with phase encoder neural network (CoreNet)
Laboratory of Measurement and Sensor System Technique, TU Dresden（德累斯顿工业大学测量与传感器系统技术实验室）；Competence Center for Biomedical Computational Laser Systems (BIOLAS), TU Dresden（德累斯顿工业大学生物医学计算激光系统能力中心）；State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University（清华大学精密仪器系精密测量技术与仪器国家重点实验室）；Cluster of Excellence Physics of Life, TU Dresden（德累斯顿工业大学生命物理学卓越集群）；Institute of Applied Physics, TU Dresden（德累斯顿工业大学应用物理研究所）
