Results 21 to 30 of about 544,818 (296)

Angled multimode interferometer for bidirectional wavelength division (de)multiplexing [PDF]

Royal Society Open Science, 2015
We have demonstrated a bidirectional wavelength division (de)multiplexer (WDM) on the silicon-on-insulator platform using two 4-channel angled multimode interferometers (AMMIs) sharing the same multimode interference waveguide.
Y. Hu, D. J. Thomson, A. Z. Khokhar, S. Stanković, C. J. Mitchell, F. Y. Gardes, J. Soler Penades, G. Z. Mashanovich, G. T. Reed   +8 more
doaj   +1 more source

Magnetic Field Sensing Based on Magnetic-Fluid-Clad Multimode-Singlemode-Multimode Fiber Structures

Sensors, 2014
Magnetic field sensing based on magnetic-fluid-clad multimode-singlemode- multimode fiber structures is proposed and experimentalized. The structures are fabricated out using fiber fusion splicing techniques.
Jiali Tang, Shengli Pu, Shaohua Dong, Longfeng Luo   +3 more
doaj   +1 more source

Multimode interference filter to solve degradation on coupler common-mode rejection [PDF]

, 1998
After quantifying degradation of a common mode rejection ratio (CMRR) 3dB-coupler due to excitation of TE01 mode, a novel compact circuit including multimode interference (MMI) coupler+bend+MMI+filter (CBF) is proposed.
López Amo, Manuel, Sánchez-Pena, José Manuel, Vázquez García, María Carmen, Aramburu, Cándido   +3 more
core   +1 more source

Bending Direction Detective Fiber Sensor for Dual-Parameter Sensing Based on an Asymmetrical Thin-Core Long-Period Fiber Grating

IEEE Photonics Journal, 2016
An asymmetrical thin-core long-period fiber grating (ATC-LPFG) cascaded with an inline Mach–Zehnder interferometer (MZI) for dual-parameter sensing has been demonstrated. In addition, bending direction is also determined at the same time.
Wenjun Ni, Ping Lu, Chao Luo, Xin Fu, Li Liu, Hao Liao, Xinyue Jiang, Deming Liu, Jiangshan Zhang   +8 more
doaj   +1 more source

Femtosecond Soliton Erbium-Doped Fiber Laser With a Symmetrical GIMF–SIMF–GIMF Saturable Absorber

IEEE Photonics Journal, 2019
A femtosecond soliton erbium-doped fiber ring laser with the symmetrical saturable absorber (SA) of graded index multimode fiber-step index multimode fiber-graded index multimode fiber (GIMF-SIMF-GIMF) is proposed and proved.
Qian-Chao Wu, Zhi-Ming Zou, Yong Yao, Jie Shi, Chong-Hao Wu, Yan-Fu Yang, Jia-Jun Tian, Ke Xu   +7 more
doaj   +1 more source

Wavelength-Spacing Switchable Dual-Wavelength Single Longitudinal Mode Thulium-Doped Fiber Laser at 1.9 μm

IEEE Photonics Journal, 2016
We propose and demonstrate a spacing switchable dual-wavelength single longitudinal mode thulium-doped fiber laser at 1.9 μm. The fiber laser employs a ring cavity and a segment of 4-m thulium-doped fiber pumped by a 1563 nm laser. A
Wanzhuo Ma, Tianshu Wang, Yuwei Su, Yan Zhang, Peng Liu, Qingsong Jia, Peng Zhang, Huilin Jiang   +7 more
doaj   +1 more source

A Composite Recognition Method Based on Multimode Mutual Attention Fusion Network

Applied Artificial Intelligence
To address the problem of single-mode vulnerability to complex environments, a multimode fusion network with mutual attention is proposed. This network combines the use of laser, infrared and millimeter wave modalities to leverage the advantages of each ...
Xing Ding, Xiangrong Zhang, Chao Liang, Bo Liu, Lanjie Niu   +4 more
doaj   +1 more source

Optimized Multimode Interference Fiber Based Refractometer in A Reflective Interrogation Scheme

Proceedings, 2018
A fiber based refractometer in a reflective interrogation scheme is investigated and optimized. A thin gold film was deposited on the tip of a coreless fiber section, which is spliced with a single mode fiber. The coreless fiber is a multimode waveguide,
Renato Bellini, Carolina V. S. Borges, Bruno Rente, Maria A. G. Martinez   +3 more
doaj   +1 more source

On-chip silicon photonic controllable 2 × 2 four-mode waveguide switch

Scientific Reports, 2021
Multimode optical switch is a key component of mode division multiplexing in modern high-speed optical signal processing. In this paper, we introduce for the first time a novel 2 × 2 multimode switch design and demonstrate in the proof-of-concept.
Cao Dung Truong, Duy Nguyen Thi Hang, Hengky Chandrahalim, Minh Tuan Trinh   +3 more
doaj   +1 more source

Design Study of Broadband and Ultrahigh-Resolution Imaging Spectrometer Using Snapshot Multimode Interference in Fiber Bundles

Photonics, 2022
Imaging spectrometry plays a significant role in various scientific realms. Although imaging spectrometers based on different schemes have been proposed, the pursuit of compact and high-performance devices is still ongoing.
Fan Meng, Zefang Liu, Pengfei Wu, Weiwei Feng, Jiangong Cui   +4 more
doaj   +1 more source