Advances in lithium niobate thin-film lasers and amplifiers: a review

Q Luo, F Bo, Y Kong, G Zhang, J Xu - Advanced Photonics, 2023 - spiedigitallibrary.org
Lithium niobate (LN) thin film has received much attention as an integrated photonic
platform, due to its rich and great photoelectric characteristics, based on which various …

Advances and new applications using the acousto-optic effect in optical fibers

AAP Pohl, RA Oliveira, RE Da Silva, CAF Marques… - Photonic Sensors, 2013 - Springer
This work presents a short review of the current research on the acousto-optic mechanism
applied to optical fibers. The role of the piezoelectric element and the acousto-optic …

Novel long-period fiber gratings written by high-frequency CO2 laser pulses and applications in optical fiber communication

YJ Rao, T Zhu, ZL Ran, YP Wang, J Jiang, AZ Hu - Optics Communications, 2004 - Elsevier
In this paper, we report novel long-period fiber gratings (LPFGs) fabricated by using a new
writing technique that is mainly based on the thermal shock effect of focused high-frequency …

Lifting polarization degeneracy of modes by fiber design: a platform for polarization-insensitive microbend fiber gratings

S Ramachandran, S Golowich, MF Yan, E Monberg… - Optics letters, 2005 - opg.optica.org
Polarization dependence in microbend gratings is an inherent problem, even in perfectly
circular fibers, since antisymmetric modes are almost degenerate linear combinations of four …

Gain flattening of an erbium-doped fiber amplifier using a high-birefringence fiber loop mirror

S Li, KS Chiang, WA Gambling - IEEE Photonics Technology …, 2001 - ieeexplore.ieee.org
We propose a flexible method for flattening the gain profile of an erbium-doped fiber
amplifier (EDFA). The method is based on a high-birefringence fiber loop mirror (HiBi-FLM) …

Reinforcement learning for compensating power excursions in amplified WDM systems

M Freire-Hermelo, D Sengupta, A Lavignotte… - Journal of Lightwave …, 2021 - opg.optica.org
Wavelength-dependent power excursions in gain-controlled erbium doped fiber amplifiers
(EDFA) is a challenging issue in optical networks. We investigate a launch channel power …

[PDF][PDF] Highly-efficient broadband acoustic transducer for all-fibre acousto-optic devices

SS Lee, HS Kim, IK Hwang, SH Yun - Electronics Letters, 2003 - researchgate.net
Conclusion: We have achieved significant improvement in the power consumption and
frequency response in an acousto-optic device by using an acoustic transducer which size is …

Gain flattening by using dual-core fiber in erbium-doped fiber amplifier

YB Lu, PL Chu - IEEE Photonics Technology Letters, 2000 - ieeexplore.ieee.org
We show that a dual-core optical fiber in which one core is doped with erbium and the other
core is undoped can be used as an optical amplifier with very flat gain over the wavelength …

A novel design of an intrinsically gain flattened erbium doped fiber

K Thyagarajan, J Kaur - Optics communications, 2000 - Elsevier
In this paper, we propose a novel coaxial dual-core erbium doped fiber profile characterized
by an intrinsically flat gain spectrum. It is shown that by doping only the outer core, it is …

Acousto-optic variable attenuator with active cancellation of back reflections

WV Sorin, P Polynkin, SL Shepherd, BY Kim… - US Patent …, 2003 - Google Patents
(57) ABSTRACT Related US. Application Data An acousto-optic? lter includes an optical?
ber With a? rst (63) Continuation-in-part of application No. 09/666,763,? led on region and a …