Isotope shifts among different isotopes can be effectively addressed using narrow-linewidth lasers, facilitating laser isotope separation and achieving significant enrichment at a single stage. The separation of potassium isotopes

The suppression of polarization cross talk in lead zirconate titanate phase modulators as a key error source has been challenging for open-loop fiber optic gyroscopes (FOGs). We developed a polarization-diversity optical frequency

We propose a transfer-learning multi-input multi-output (TL-MIMO) scheme to significantly reduce the required training complexity for converging the equalizers in mode-division multiplexing (MDM) systems. Based on a built three-mo

A large field of view is in high demand for disease diagnosis in clinical applications of optical coherence tomography (OCT) and OCT angiography (OCTA) imaging. Due to limits on the optical scanning range, the scanning speed, or t

In this Letter, we employ fused silica and two types of optical glass as examples to investigate the coherent terahertz (THz) wave emission from laser-ionized isotropic transparent dielectrics. Based on the laser energy and incide

In this work, we propose a method using frequency-modulated continuous-wave (FMCW) self-mixing interferometry (SMI) and all-phase fast Fourier transform (APFFT) for simultaneous measurement of speed and distance. APFFT offers supe

Optical phased arrays (OPAs) have broad application prospects due to their advanced capability in beamforming and steering. In this work, we achieve independent dual beams in the far field by dividing the array elements of the OPA

A 2 × 3 kW-level bidirectional output fiber oscillator is realized by combining the specially designed spindle-shaped ytterbium-doped fiber, non-wavelength-stabilized 976-nm LDs, and grating bandwidth optimization to balance trans

We demonstrate an all-polarization-maintaining (APM) fiber mode-locked laser based on nonlinear polarization evolution (NPE). A well-designed Sagnac fiber loop is employed to establish the nonlinear polarization evolution process

Soliton generation schemes have attracted considerable scholarly attention. This paper introduces a novel backward tuning method for the reversible generation of dissipative Kerr solitons (DKSs). Reversible soliton generation reli

We propose and experimentally demonstrate a photonic method for wideband multipath self-interference cancellation using a silicon photonic modulator chip. The chip generates phase-inverted reference signals by leveraging the oppos

We present a tunable terahertz (THz) spectrum analyzer with hyperspectral resolution formed from electrically tunable metamaterial and plasmonic structures. As few as eight encoders based on four detectors are needed to recover 39

In this work, a simple fabrication method of germanium-based metasurfaces is proposed, where the deposited Al2O3 layer with high selectivity is chosen as the hard mask and retained after the dry etching process. The simulation and

A 3D nonlinear photonic crystal containing four parallel segments of periodic χ(2) grating structure is fabricated employing the femtosecond laser poling of ferroelectric Ca0.28Ba0.72Nb2O6 crystal. The second harmonic generation f

Stimulated Brillouin scattering in planar integrated circuits promises to realize compact and highly coherent lasers. Here we report efficient Brillouin lasing at telecommunication wavelength from a planar Ge25Sb10S65 chalcogenide

We use a broad Gaussian beam with perturbations to motivate rogue waves (RWs) in a two-dimensional optical-induced lattice. In a linear situation, we fail to observe RWs. Nevertheless, under a nonlinear condition, the probability

Electron-trapping materials, due to their exceptional ability of energy storage and controllable photon release under external stimulation, have attracted considerable attention in the field of optical information storage (OIS). I

The generation of high-power laser pulses using a compact hetero-integrated assembly based on a semiconductor laser with a dual-element composite 2 µm × 100 µm aperture and a compact heterothyristor switch is demonstrated. The ach

Frequency-modulated continuous-wave (FMCW) Lidar has the characteristics of high-ranging accuracy, noise immunity, and synchronous speed measurement, which makes it a candidate for the next generation of vehicle Lidar. In this wor

We demonstrate a resolution enhancement scheme of radio-frequency signals by tailoring a phase-squeezed state. The echo radio-frequency signals collected by photonic radar give rise to displacements in the phase quadrature of a pr

A highly sensitive carbon dioxide (CO2) sensor based on light-induced thermoelastic spectroscopy (LITES) utilizing a self-designed low-frequency quartz tuning fork (QTF) and a fiber-coupled multipass cell (MPC) is reported in this

In this work, we introduce a kind of new structured radial grating, which is named the even-type sinusoidal amplitude radial (ETASR) grating. Based on diffraction theory and the principle of stationary phase, a comprehensive theor