Results 81 to 90 of about 7,835,761 (171)

Single longitudinal mode fiber ring laser [PDF]

, 2018
In this work, a dual-wavelength fiber ring laser working on the SLM regime is proposed and experimentally verified. A proof-of-concept device has been tested employing high precision small-sized SLM fiber lasers to complement the feedback produced by a ...
Ruiz Lombera, Rubén, López Higuera, José Miguel, Jesus Mirapeix, Jose-Miguel Lopez-Higuera, Mirapeix Serrano, Jesús María, Quintela Incera, María Ángeles, Luis Rodriguez-Cobo, Ruben Ruiz-Lombera, Rodríguez Cobo, Luis, M. Angeles Quintela   +9 more
core   +1 more source

Eight-Wavelength Selectable Single-Longitudinal- Mode Fiber Laser Using 1× 8 Arrayed Waveguide Grating and Passive Triple Subring Resonators

IEEE Photonics Journal
In this paper, we demonstrate a stable output single-longitudinal-mode (SLM) Erbium-doped fiber laser (EDFL) with eight selectable wavelengths. The EDFL achieves wavelength selection through a 1 × 8 arrayed waveguide grating (AWG) and generates ...
Zi Wang, Jun-Kai Wei, Pin-Chen Chen, Shien-Kuei Liaw, Jem-Kun Chen, Chien-Hung Yeh   +5 more
doaj   +1 more source

Ultrasonic Lamb Wave Detection Based on a Tunable, Narrow-Linewidth, and Frequency-Locked Fiber Laser

IEEE Photonics Journal, 2017
Developments of advanced ultrasonic sensors have made significant impact in structural health monitoring as well as in other various fields including electronics, biomedicine, and geophysics. We describe a cost-effective, highly stabilized, and sensitive
Jingjing Guo, Changxi Yang
doaj   +1 more source

Vectorial Diffractive Neural Metasurfaces for Multiplexed Synthesis of Optical Skyrmions

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A three‐layer Jones‐matrix‐based vectorial diffractive neural network enables compact, passive, and multiplexed synthesis of optical skyrmions and bimerons. By mapping distinct Gaussian‐beam input channels to coaxial orbital‐angular‐momentum and polarization states, the device generates up to 16 topological vector textures with high mode purity, robust
Tianqu Chen, Xu Xing, Mingfeng Xu, Yong Yu, Xi Tang, Yinghui Guo, Fei Zhang, Mingbo Pu, Xiangang Luo   +8 more
wiley   +1 more source

Experimental Demonstration of a Multicorrugation-Pitch-Modulated (MCPM) DFB Semiconductor Laser Based on Reconstruction-Equivalent-Chirp Technology

IEEE Photonics Journal, 2015
A multicorrugation-pitch-modulated (MCPM) distributed-feedback semiconductor laser is experimentally demonstrated for the first time to achieve stable single longitudinal mode (SLM) performance.
Jilin Zheng, Yunshan Zhang, Yuechun Shi, Weichun Li, Bocang Qiu, Jun Lu, Tingting Zhang, Xiangfei Chen   +7 more
doaj   +1 more source

Tunable Narrow Linewidth Erbium-Doped Fiber Ring Laser Based on Saturable Absorber and Self-Injection Feedback

IEEE Photonics Journal
We demonstrate a tunable single-longitudinal-mode (SLM) narrow linewidth erbium-doped fiber (EDF) ring laser (EDFRL) in a cost-effective way. The laser incorporates an unpumped-EDF-based saturable absorber (SA) and a self-injection feedback loop for mode
Fujun Xu, Xiaxiao Wang, Xiaobin Xu, Ningfang Song   +3 more
doaj   +1 more source

Single-longitudinal-mode operation in tunable novel zirconia-yttria-alumina-erbium-doped fiber laser

, 2014
A tunable, single-longitudinal-mode (SLM) fiber laser based on a short length, highly doped zirconia–erbium doped fiber (Zr-EDF) is proposed and demonstrated.
Ahmad, Harith, Harun, Sulaiman Wadi, Thambiratnam, K., Paul, M.C.   +3 more
core   +2 more sources

Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating

IEEE Photonics Journal, 2017
A distributed feedback (DFB) semiconductor laser based on s-bent waveguide and sampled grating is theoretically studied and experimentally demonstrated.
Yunshan Zhang, Yuechun Shi, Lianyan Li, Zhengpeng Zou, Jun Lu, Yinchao Du, Wenxuan Wang, Yating Zhou, Xin Chen, Jilin Zheng, Xiangfei Chen   +10 more
doaj   +1 more source

Bifunctional operation semiconductor laser with mode-locking and single-longitudinal modes

We present the first demonstration of a bifunctional-operation semiconductor laser (BOSL) operating at a wavelength of 1550 nm. By evanescently coupling a topological interface state extended grating waveguide with a straight waveguide, the BOSL achieves
Marsh, John H., Sweeney, Stephen J., Al-Rubaiee, Mohanad Jamal, Sun, Xiao, Li, Zhibo, Hou, Lianping, Kelly, Anthony E.   +6 more
core   +1 more source

Study on a DFB Laser Diode Based on Sampled Grating Technique for Suppression of the Zeroth Order Resonance

IEEE Photonics Journal, 2017
A distributed feedback (DFB) semiconductor laser based on sampled grating with multiple sections, i.e., a straight, a bent, and a tilted waveguide, is proposed to suppress the $0{\rm{th}}$ -order resonance.
Lianyan Li, Yuechun Shi, Yunshan Zhang, Hui Zou, Jianping Shen, Xiangfei Chen   +5 more
doaj   +1 more source