Results 1 to 10 of about 145,400 (165)

All-Optical Single-Longitudinal-Mode Forward Brillouin Microwave Oscillator with an Unbalanced Fiber Mach–Zehnder Interferometer [PDF]

Micromachines
An all-optical single-longitudinal-mode (SLM) forward Brillouin microwave oscillator (FB-MO) with an unbalanced Fiber Mach–Zehnder interferometer (UF-MZI) for microwave photonics (MWP) generation is proposed and experimentally investigated.
Xinyue Fang, Wenjun He, Wen Wang, Yi Liu, Yajun You, Qing Yan, Yafei Hou, Zepeng Wu, Lei Yu, Songquan Yan, Mingxing Li, Jian He, Xiujian Chou   +12 more
doaj   +2 more sources

A Resonantly Pumped Single-Longitudinal Mode Ho:Sc2SiO5 Laser with Two Fabry–Perot Etalons

Applied Sciences, 2017
We present a single-longitudinal-mode Ho:Sc2SiO5 (Ho:SSO) laser pumped by a Tm:YAP laser for the first time. Two intra-cavity Fabry–Perot etalons were used to realize the single-longitudinal mode of operation.
Xiao-Tao Yang, Long Liu, Peng Zhang, Wen-Qiang Xie   +3 more
doaj   +3 more sources

A Single-Longitudinal-Mode S + C Band Wavelength-Tunable Fiber Laser [PDF]

Sensors
An external cavity wavelength-fiber ring laser (ECWTFL) based on a semiconductor optical amplifier and a combined wavelength scanning filter in the Littrow configuration is proposed and experimentally demonstrated.
Da Liu, Yi Jiang
doaj   +2 more sources

Diode-Pumped Single-Longitudinal-Mode Pr³⁺:YLF Laser Based on Combined Fabry–Perot Etalons at 522.67 nm

Photonics, 2023
We create a rate equation theoretical model of a continuous-wave end-pumped Pr3+:YLF SLM laser that characterizes the output properties of a single-longitudinal-mode (SLM) green laser. After inserting two Fabry–Perot (F–P) etalons with thicknesses of 0.3
Weicheng Dai, Haozhu Wang, Long Jin, Chang Liu, Yuan Dong, Guangyong Jin   +5 more
doaj   +1 more source

Bidirectional Single Longitudinal Mode Er-Doped Fiber Ring Laser Using a Bandpass Filter and Cascaded Fiber Ring Filter

IEEE Access, 2023
Bidirectional single longitudinal mode fiber ring laser have advantages and potential in optical sensing, especially angular velocity sensing. The current methods for implementing bidirectional single longitudinal mode fiber ring laser cannot ensure ...
Bowen Xu, Wenrui Wang, Lingyun Ye, Kaichen Song   +3 more
doaj   +1 more source

An Ytterbium-Doped Narrow-Bandwidth Randomly Distributed Feedback Laser Emitting at a Wavelength of 976 nm

Photonics, 2023
All-fiber, polarization maintaining, narrow-bandwidth, Yb-doped fiber lasers with randomly distributed feedback operated near 976 nm were realized for the first time.
Danila A. Davydov, Andrey A. Rybaltovsky, Svetlana S. Aleshkina, Vladimir V. Velmiskin, Mikhail E. Likhachev, Sergei M. Popov, Dmitry V. Ryakhovskiy, Yuriy K. Chamorovskiy, Andrey A. Umnikov, Denis S. Lipatov   +9 more
doaj   +1 more source

Single-Longitudinal-Mode Laser at 1123 nm Based on a Twisted-Mode Cavity

Crystals, 2021
A single-longitudinal-mode (SLM) Neodymiun-doped Yttrium Aluminium Garnet (Nd:YAG) laser at 1123 nm was first demonstrated with a twisted-mode (TM) cavity. By eliminating the spatial hole burning phenomenon, a stable SLM 1123 nm laser output was obtained.
Yang Liu, Sasa Zhang, Zhenhua Cong, Shaojie Men, Chen Guan, Yongyao Xie, Zhaojun Liu   +6 more
doaj   +1 more source

Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter

Frontiers in Physics, 2023
A single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing,
Xiangdong Wang, Fengping Yan, Hao Guo, Wei Wang, Qi Qin, Dandan Yang, Pengfei Wang, Ting Li, Chenhao Yu, Biao Guan, Kazuo Kumamoto, Yuping Suo, Yan Bai   +12 more
doaj   +1 more source

Study of the Effects of Cavity Mode Spacing on Mode-Hopping in III–V/Si Hybrid Photonic Crystal Lasers

Crystals, 2021
We present a design methodology for hybrid lasers to realise mode-hop free operation by controlling the cavity mode spacing. In this study, a compact hybrid photonic crystal laser (H-PhCL) was employed which allowed a reduction of the Fabry–Perot length ...
Praveen K. J. Singaravelu, Sharon M. Butler, Robert N. Sheehan, Alexandros A. Liles, Stephen P. Hegarty, Liam O’Faolain   +5 more
doaj   +1 more source

Tunable and Switchable Dual-Wavelength SLM Narrow-Linewidth Fiber Laser with a PMFBG-FP Filter Cascaded by Multi-Ring Cavity

Photonics, 2022
A single longitudinal mode (SLM) dual-wavelength switchable erbium-doped fiber laser (DW-EDFL) based on polarization-maintaining fiber Bragg grating Fabry–Perot cavity (PMFBG-FP) cascaded multiple sub-ring cavities (MSCs) is proposed.
Mingquan Gao, Bin Yin, Yanzhi Lv, Guofeng Sang, Benran Hou, Haisu Li, Muguang Wang, Songhua Wu   +7 more
doaj   +1 more source