Results 71 to 80 of about 179,213 (178)

Multifunctionality in Silicon Photonics Through Temperature‐Driven Inverse Design

Laser &Photonics Reviews, EarlyView.
Temperature‐conditioned inverse design embeds thermo‐optic reconfigurability directly into compact silicon photonic devices. By co‐optimizing a single geometry at 300 K (T1) and 520 K (T2), the same structure supports distinct optical functions, enabling experimentally verified switching and mode conversion without resonant architectures or additional ...
Berkay Neseli, Seokjin Hong, Yeonjun Kim, Seungsoo Lee, Seung‐Yoon Choi, Junyeop Lee, Hyo‐Hoon Park, Mirbek Turduev, Hamza Kurt   +8 more
wiley   +1 more source

Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation

International Journal of Antennas and Propagation, 2014
The Mach-Zehnder interferometer (MZI) can be used to test changes in the refractive index of sucrose solutions at different concentrations. However, the popularity of this measurement tool is limited by its substantial size and portability.
Chien-Hsing Chen, Chih-Yu Hsu, Pei-Hsing Huang, Jian-Neng Wang, Wei-Te Wu   +4 more
doaj   +1 more source

All-optically integrated photoacoustic and optical coherence tomography: A review [PDF]

Journal of Innovative Optical Health Sciences, 2017
All-optically integrated photoacoustic (PA) and optical coherence tomography (OCT) dual-mode imaging technology that could offer comprehensive pathological information for accurate diagnosis in clinic has gradually become a promising imaging technology ...
Wei Qiao, Zhongjiang Chen
doaj   +1 more source

High‐Speed Integrated Graphene‐Silicon Slot‐Waveguide Electro‐Absorption Modulator at 2 and 1.5 µm Wavebands

Laser &Photonics Reviews, EarlyView.
A high‐speed, efficient, robust, and compact 2‐μm$\mathrm{\mu}\mathrm{m}$ waveband E/O absorption modulator based on a graphene‐silicon slot waveguide is demonstrated. This work represents a significant advancement towards the realization of high‐speed integrated E/O modulators for optical communication systems operating at the 2‐μm$\mathrm{\mu}\mathrm{
Chao Luan, Deming Kong, Yunhong Ding, Hao Hu   +3 more
wiley   +1 more source

Mid-infrared photonics devices in SOI

In this paper we present silicon photonics devices designed for the 3-4µm wavelength region including waveguides, MMIs, ring resonators and Mach-Zehnder interferometers. The devices are based on silicon on insulator (SOI) platform. We show that 400-500nm
Reed, G.T., Nedeljković, M., Hu, Y., Peacock, A.C., Milošević, M.M., Ben Masaud, T.M., Jaberansary, E., Chen, Xia, Strain, M., Sorel, M., Mashanovich, G.Z., Chong, H.M.H.   +11 more
core   +1 more source

High-order topological charges measurement of LG vortex beams with a modified Mach-Zehnder interferometer

, 2015
We present a new method to measure the high-order topological charges (TCs) of Laguerre-Gaussian (LG) vortex beams by using a modified Mach-Zehnder interferometer.
Tai, Yuping, Lv, Fangjie, Li, Xinzhong, Nie, Zhaogang, Chen, Qingdong, Zhang, Liping   +5 more
core   +1 more source

Fiber Wavelength Meter Based on Fizeau Interferometer on wFBG for Phi-OTDR Signal Drift Compensation

Sensors
The paper studies the characteristics of a wavelength meter (WLM) based on a Fizeau-based interferometer (FI) using weak Fiber Bragg Gratings (wFBGs).
Konstantin V. Stepanov, Tatyana V. Gritsenko, Roman I. Khan, Kirill I. Koshelev, Fedor L. Barkov, Andrey A. Zhirnov, Alexey B. Pnev   +6 more
doaj   +1 more source

Microring resonator-assisted Fourier transform spectrometer with enhanced resolution and large bandwidth in single chip solution

Nature Communications, 2019
Here, the authors demonstrate a microring resonator-assisted Fourier-transform spectrometer, which is realized using a thermally tunable photonic Mach-Zehnder interferometer cascaded with a tunable microring resonator to enhance the resolution, all ...
S. N. Zheng, J. Zou, H. Cai, J. F. Song, L. K. Chin, P. Y. Liu, Z. P. Lin, D. L. Kwong, A. Q. Liu   +8 more
doaj   +1 more source

Fiber-Optic Microstructure Sensors: A Review

Photonic Sensors, 2021
This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot interferometer (FPI) sensors, Mach-Zehnder interferometer (MZI) sensors ...
Zengling Ran, Xiu He, Yunjiang Rao, Dong Sun, Xiaojuan Qin, Debiao Zeng, Wangwei Chu, Xiankun Li, Yabin Wei   +8 more
doaj   +1 more source

Attosecond‐Stable Two‐Dimensional Spectroscopy by a Sagnac‐Based Modulating System and a Sub‐4‐fs Continuum Source

Laser &Photonics Reviews, EarlyView.
A novel optical platform integrates a Sagnac‐based interferometer with a high‐brightness multiple‐plate continuum source to advance two‐dimensional electronic spectroscopy. The robust system delivers octave‐spanning, 3.7‐femtosecond pulses and achieves intrinsic attosecond‐level phase stability without active feedback.
Wei‐Chung Feng, Bo‐Han Chen, Chih‐Hsuan Lu, Howe‐Siang Tan, Shang‐Da Yang, Kai Chen   +5 more
wiley   +1 more source