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Nonlinear processes in the quantum regime are essential for many applications, such as quantum-limited amplification, measurement and control of quantum systems. In particular, the field of quantum error correction relies heavily on…

The rapid growth of large-scale AI models has intensified energy consumption and data-movement challenges in modern datacenters. Photonic accelerators offer a promising path by executing the linear matrix multiplications of transformer…

Optics · Physics 2026-03-26 Hyoseok Park , Yeonsang Park

We present a time-dependent, end-to-end framework for laser power beaming from cislunar orbits to the lunar surface. The model links on-orbit generation (solar arrays and wall-plug to optical), terrain-masked visibility and range, beam…

Optics · Physics 2026-02-05 Slava G. Turyshev

We report on the observation of both stable dissipative solitons and noise-like pulses with the presence of strong Raman scattering in a relatively short all-normal-dispersion Yb-doped fiber laser. We show that Raman scattering can be…

Optics · Physics 2015-10-28 Daojing Li , Deyuan Shen , Lei Li , Hao Chen , Dingyuan Tang , Luming Zhao

In continuous-variable quantum information processing, it is crucial to develop high-efficiency and broadband quantum memory of squeezed light, which enables the storage of full-bandwidth information. Here, we present a quantum memory of…

Integrated photonic platforms can greatly enhance the efficiency of nonlinear frequency conversion processes by tightly confining light on a sub-micron scale. However, this advantage is often reduced by large fiber-to-chip coupling losses…

Distributed deep learning (DDL) systems strongly depend on network performance. Current electronic packet switched (EPS) network architectures and technologies suffer from variable diameter topologies, low-bisection bandwidth and…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-27 Alessandro Ottino , Joshua Benjamin , Georgios Zervas

Robust laser delivery and stabilization are key components in atom-based quantum technologies, such as quantum computing. Moving these technologies towards product-like deployment requires scalable, compact, cost-effective, and upgradable…

The evolution toward 6G networks increasingly relies on network slicing to provide tailored, End-to-End (E2E) logical networks over shared physical infrastructures. A critical challenge is effectively decomposing E2E Service Level…

Networking and Internet Architecture · Computer Science 2026-01-21 Cyril Shih-Huan Hsu

Transformer-based models are becoming more and more intelligent and are revolutionizing a wide range of human tasks. To support their deployment, AI labs offer inference services that consume hundreds of GWh of energy annually and charge…

Systems and Control · Electrical Eng. & Systems 2025-08-29 Ching-Yi Lin , Sahil Shah

We combine a graphene mode-locked oscillator with an external compressor and achieve~29fs pulses with~52mW average power. This is a simple, low-cost, and robust setup, entirely fiber based, with no free-space optics, for applications…

Mesoscale and Nanoscale Physics · Physics 2015-08-21 D. Purdie , D. Popa , V. J. Wittwer , Z. Jiang , G. Bonacchini , F. Torrisi , S. Milana , E. Lidorikis , A. C. Ferrari

To achieve multi-Gb/s data rates in 6G optical wireless access networks based on narrow infrared (IR) laser beams, a high-speed receiver with two key specifications is needed: a sufficiently large aperture to collect the required optical…

Laser wakefield acceleration, characterized by the extremely high electric field gradient exceeding 100GV/m, is regarded as a compact and cost affordable technology for the next generation of particle colliders and light sources. However,…

Accelerator Physics · Physics 2026-01-01 Jia Wang , Ming Zeng , Dazhang Li , Wentao Wang , Song Li , Ke Feng , Jie Gao

Loss of coherence with increasing excitation amplitudes and spatial size modulation is a fundamental problem in designing Raman fiber lasers. While it is known that ramping up laser pump power increases the amplitude of stochastic…

Due to the high costs of optical fiber deployment in Low-Density and Rural Areas (LDRAs), 5G Fixed Wireless Access (5G FWA) recently emerged as an affordable solution. A widely adopted deployment scenario of 5G FWA includes edge cloud that…

Networking and Internet Architecture · Computer Science 2024-11-11 Anselme Ndikumana , Kim Khoa Nguyen , Mohamed Cheriet

The generation of intense, femtosecond-scale X-ray pulses is crucial for probing matter under extreme temporal and field conditions. Current chirped-pulse amplification (CPA) techniques in free-electron lasers (FELs), however, face…

Accelerator Physics · Physics 2025-06-02 Mingchang Wang , Li Zeng , Bingbing Zhang , Qinghao Zhu , Xiaozhe Shen , Xiaofan Wang , Qinming Li , Weiqing Zhang

We report adiabatic passage experiments with a single trapped $^{40}$Ca$^+$ ion. By applying a frequency chirped laser pulse with a Gaussian amplitude envelope we reach a transfer efficiency of 0.990(10) on an optical transition from the…

Quantum Physics · Physics 2010-06-29 Chr. Wunderlich , Th. Hannemann , T. Koerber , H. Haeffner , Ch. Roos , W. Haensel , R. Blatt , F. Schmidt-Kaler

A 16-channel optical phased array is fabricated on a gallium arsenide photonic integrated circuit platform with a low-complexity process. Tested with a 1064 nm external laser, the array demonstrates 0.92{\deg} beamwidth, 15.3{\deg}…

Frequency agile radar (FAR) is known to have excellent electronic counter-countermeasures (ECCM) performance and the potential to realize spectrum sharing in dense electromagnetic environments. Many compressed sensing (CS) based algorithms…

Information Theory · Computer Science 2018-11-01 Tianyao Huang , Yimin Liu , Xingyu Xu , Yonina C. Eldar , Xiqin Wang

We experimentally demonstrate efficient Raman conversion to respective Stokes and anti-Stokes fields in both pulsed and continuous modes with a Rb-87 atomic vapor cell. The conversion efficiency is about 40-50% for the Stokes field and…

Atomic Physics · Physics 2012-10-19 Bing Chen , Kai Zhang , Chun-Hua Yuan , Chengling Bian , Cheng Qiu , L. Q. Chen , Z. Y. Ou , Weiping Zhang
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