Real-time mode decomposition for few-mode fiber based on numerical method

L Huang, S Guo, J Leng, H Lü, P Zhou, X Cheng - Optics express, 2015 - opg.optica.org
Today a specific attention has been paid to look into the modal characteristics of the high-
power laser beam. And the instantaneous monitoring and analyzing on modal content via …

Hollow-core photonic quasicrystal fiber with high birefringence and ultra-low nonlinearity

Z Huo, E Liu, J Liu - Chinese Optics Letters, 2020 - opg.optica.org
A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-
quality light wave propagation with high polarization maintaining performance and low …

Optical fiber refractive index profiling by iterative optical diffraction tomography

S Fan, S Smith-Dryden, J Zhao… - Journal of Lightwave …, 2018 - opg.optica.org
A non-destructive iterative interferometric tomographic technique is proposed for imaging
fibers with high refractive index contrast, complex structures, and/or large optical path …

Experimental study of the influence of mode excitation on mode instability in high power fiber amplifier

Q Chu, R Tao, C Li, H Lin, Y Wang, C Guo, J Wang… - Scientific Reports, 2019 - nature.com
Mode instability with different mode excitation has been investigated by off-splicing the
fusion point in a 4 kW-level monolithic fiber laser system, which reveals that the fiber …

Dodecagonal photonic quasi-crystal fiber with high birefringence

W Cai, E Liu, B Feng, W **ao, H Liu, Z Wang… - Journal of the Optical …, 2016 - opg.optica.org
A photonic quasi-crystal fiber (PQF) with high birefringence is proposed. A dodecagonal
Stampfli quasi-periodic lattice of air holes constitutes the cladding of the PQF. The PQF …

Dispersion properties of a photonic quasi-crystal fiber with double cladding air holes

W Cai, E Liu, B Feng, H Liu, Z Wang, W **ao, T Liang… - Optik, 2016 - Elsevier
We propose a novel photonic quasi-crystal fiber (PQF) with a near-zero flattened dispersion
in the 1450–1650 nm optical telecommunication window. A 10-fold quasi-crystal lattice of …

Modal analysis of antiresonant hollow core fibers using S2 imaging

AV Newkirk, JE Antonio-Lopez, J Anderson… - Optics letters, 2016 - opg.optica.org
We analyze the higher-order core mode content in various designs of antiresonant hollow
core fibers using spatially and spectrally resolved imaging. Hollow core fibers have great …

A real-time fiber mode demodulation method enhanced by convolution neural network

H Gao, H Hu, Y Zhao, J Li - Optical Fiber Technology, 2019 - Elsevier
Inspired by the outstanding performance of artificial intelligence for various tasks, in this
work we explore a new method for the fiber modal demodulation based on convolutional …

Modal decomposition of a fibre laser beam based on the push-broom stochastic parallel gradient descent algorithm

F Chen, S Zhao, Q Wang, J Ma, Q Lu, J Wan, R **e… - Optics …, 2021 - Elsevier
Compared with traditional methods, the stochastic parallel gradient descent (SPGD)
algorithm used in modal decomposition has its own unique advantages of faster speed …

Laser biosensor as for pregnancy test by using photonic crystal fiber

SJ Belal, LM Alameri, FF Rashid… - International Journal of …, 2019 - indianjournals.com
The use of laser and optoelectronics concepts to develop biological detection systems is the
goal of this work. A biosensor based on one of the interferometer techniques, Mach-Zhender …