Field-programmable gate array and deep neural network-accelerated spatial-spectral interferometry for rapid optical dispersion analysis
Spatial-spectral interferometry (SSI) is a technique used to reconstruct the electrical field of an ultrafast laser. By analyzing the ... (Source: Optics Letters)
Source: Optics Letters - February 28, 2024 Category: Physics Authors: Xin-Li Lee Jui-Chi Chang Xiang-Yu Ye Chia-Yuan Chang Source Type: research

Elliptical spiral zone plate fabrication using direct laser writing for generating an elliptical perfect vortex beam
We report and fabricate a novel, to our knowledge, vortex beam generator called elliptical spiral zone plate (ESZP) using direct laser ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Minglong Li Haodong Zhu Yi Huang Ruiqi Yin ZhenYu Yang Ming Zhao Source Type: research

High-performance Ge-on-insulator lateral p-i-n waveguide photodetectors for electronic – photonic integrated circuits at telecommunication wavelengths
We report high-performance germanium-on-insulator (GeOI) waveguide photodetectors (WGPDs) for electronic – photonic integrated ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Tzu-Yang Huang Radhika Bansal Soumava Ghosh Kwang Hong Lee Qimiao Chen Chuan Seng Tan Guo-En Chang Source Type: research

Multistability, relaxation oscillations, and chaos in time-delayed optoelectronic oscillators with direct laser modulation
We investigate the nonlinear dynamics of an optoelectronic oscillator that is implemented with a laser diode (LD) with time-delayed ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Jimmi Herv é Talla Mb é Michael Chiajeu Njidjou Alain Francis Talla Paul Woafo Yanne K. Chembo Source Type: research

OFDR shape sensor based on a femtosecond-laser-inscribed weak fiber Bragg grating array in a multicore fiber
An optical frequency domain reflectometry (OFDR) shape sensor was demonstrated based on a femtosecond-laser-inscribed weak fiber Bragg ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Cailing Fu Shuai Xiao Yanjie Meng Rongyi Shan Wenfa Liang Huajian Zhong Changrui Liao Xiaoyu Yin Yiping Wang Source Type: research

Speed-enhanced scattering compensation method with sub-Nyquist sampling
A rapid feedback-based scattering compensation method is particularly important for guiding light precisely within turbid tissues, ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Zhenghan Li Jiazhu Zhu Wei Gong Ke Si Source Type: research

Harmonic active mode-locking optoelectronic oscillator with suppressed supermode noise based on pulse intensity feedback
A harmonic active mode-locking optoelectronic oscillator (HAML-OEO) with pulse intensity feedback is proposed and experimentally ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Bo Yang Bo Bai Hao Chi Shuna Yang Yiran Gao Hongxia He Source Type: research

Super-resolution terahertz imaging based on a meta-waveguide
A terahertz metamaterial waveguide (meta-waveguide) and a meta-waveguide-based lens-free imaging system are presented. The meta-waveguide ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Xinyu Li Zhengxin Wang Huiqi Jiang Minghui Deng Lesiqi Yin Cheng Gong Weiwei Liu Source Type: research

Observing thermal lensing with quantum light
The introduction of quantum methods in spectroscopy can provide enhanced performance and technical advantages in the management of noise. ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Marco Barbieri Iole Venditti Chiara Battocchio Vincenzo Berardi Fabio Bruni Ilaria Gianani Source Type: research

Space – time domain equalization algorithm based on complex-valued neural network in a long-haul photonic-aided MIMO THz system
The urgent demand for high-bandwidth wireless services in enhanced mobile broadband networks needs innovative solutions for mobile ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Sicong Xu Wen Zhou Weiping Li Yumeng Gou Bohan Sang Rahim Uddin Lingchuan Zeng Source Type: research

Surface recoil force on dielectric nanoparticle enhancement via graphene acoustic surface plasmon excitation: non-local effect consideration
Controlling optomechanical interactions at sub-wavelength levels is of great importance in academic science and nanoparticle manipulation ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Julieta Olivo Hernan Ferrari Mauro Cuevas Source Type: research

Fiber-optic spectrum monitoring of wavelength-division-multiplexed telecommunication signals with MHz update rates
We propose a novel (to our knowledge) and simple real-time optical monitoring (RTOM) system for dynamic spectral analysis of ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Afsaneh Shoeib Manuel P. Fern á ndez Connor Rowe Reza Maram Pasquale Ricciardi Jos é Aza ñ a Source Type: research

External chirality enhancing downconversion in a waveguide-coupled nonlinear plasmonic metasurface
Metasurfaces, typically constructed from spatial arrangements of localized building blocks, can enhance light – matter interactions ... (Source: Optics Letters)
Source: Optics Letters - February 27, 2024 Category: Physics Authors: Tsafrir Abir Symeon Sideris Tal Ellenbogen Source Type: research

Performance enhancement via XPM suppression of a linear all-PM mode-locked fiber oscillator
We demonstrate the strong performance enhancement of an all-polarization-maintaining mode-locked fiber oscillator using a linear ... (Source: Optics Letters)
Source: Optics Letters - February 26, 2024 Category: Physics Authors: Marvin Edelmann Yi Hua Mikhail Pergament Franz X. K ä rtner Source Type: research

Highly birefringent side-hole fiber Bragg grating for high-temperature pressure sensing
We demonstrate a novel, to the best of our knowledge, high-temperature pressure sensor based on a highly birefringent fiber Bragg grating ... (Source: Optics Letters)
Source: Optics Letters - February 26, 2024 Category: Physics Authors: Baijie Xu Guanfeng Chen Xizhen Xu Shen Liu Changrui Liao Xiaoyu Weng Liwei Liu Junle Qu Yiping Wang Jun He Source Type: research