Results 1 to 10 of about 200,533 (333)

Design and Analysis of an O+E-Band Hybrid Optical Amplifier for CWDM Systems [PDF]

open access: yesMicromachines, 2022
Broadband amplification in the O+E-band is very desirable nowadays as a way of coping with increasing bandwidth demands. The main issue with doped fiber amplifiers working in this band such as the bismuth-doped fiber amplifier is that they are costly and
Benish Kanwal   +7 more
doaj   +2 more sources

Optical fibres, lasers, and amplifiers [PDF]

open access: greenEndeavour, 1992
Initially, the only operation that could be performed in optical fibre communication was transmitting optical information from one point to another, necessitating complex auxiliary electronic circuitry. In recent years, however, a range of fibre components has been developed which promise to become as ubiquitous and indispensable as the transistor is ...
W.A. Gambling
openalex   +4 more sources

Dispersive properties of quasi-phase-matched optical parametric amplifiers [PDF]

open access: green, 2002
The dispersive properties of non-degenerate optical parametric amplification in quasi-phase-matched (QPM) nonlinear quadratic crystals with an arbitrary grating profile are theoretically investigated in the no-pump-depletion limit.
Stefano Longhi, M. Marano, P. Laporta
openalex   +4 more sources

Raman Assisted Fiber Optical Parametric Amplifier for S-Band Multichannel Transmission System

open access: yesFibers, 2021
In this paper we present results from the study of optical signal amplification using Raman assisted fiber optical parametric amplifier with considerable benefits for S-band telecommunication systems where the use of widely used erbium-doped fiber ...
Andis Supe   +6 more
doaj   +1 more source

Precision Design and Fabrication of Noise-free High-Frequency Amplifier Board for Enhanced Signal Processing [PDF]

open access: yesITM Web of Conferences, 2023
An optical signal processing system is widely used for long-distance signal transmission with high speed and low attenuation. It plays a fundamental role in optical communication systems that involves transmitting, receiving, amplifying, and manipulating
Narvekar Sonal, Sharma Kadambari
doaj   +1 more source

Photonic-chip integrated large-mode-area high-power CW optical amplifier [PDF]

open access: yesEPJ Web of Conferences, 2023
Here, we report on a CMOS-compatible thulium-doped high power continuous wave (CW) optical amplifier, leveraging large mode-area gain waveguides. The amplifier structure combines a silicon nitride waveguide above which a sputtered 1250 nm-thick thulium ...
Gaafar Mahmoud A.   +11 more
doaj   +1 more source

Single mode terahertz quantum cascade amplifier [PDF]

open access: yes, 2014
A terahertz (THz) optical amplifier based on a 2.9 THz quantum cascade laser (QCL) structure has been demonstrated. By depositing an antireflective coating on the QCL facet, the laser mirror losses are enhanced to fully suppress the lasing action ...
Beere, H.E.   +8 more
core   +5 more sources

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

open access: yesApplied Sciences, 2020
The feasibility of employing a birefringent fiber loop to enhance the performance of a directly modulated reflective semiconductor optical amplifier is experimentally demonstrated for the first time.
Zoe V. Rizou   +3 more
doaj   +1 more source

Protection Scheme for a Wavelength-Division-Multiplexed Passive Optical Network Based on Reconfigurable Optical Amplifiers

open access: yesApplied Sciences, 2021
This paper demonstrates a wavelength-division-multiplexed passive optical network (WDM-PON) scheme based on novel reconfigurable optical amplifiers (ROAs).
Hong-Sing Lee   +2 more
doaj   +1 more source

Harmonics-assisted optical phase amplifier

open access: yesLight: Science & Applications, 2022
The change in the relative phase between two light fields serves as a basic principle for the measurement of the physical quantity that guides this change.
Wu-Zhen Li   +9 more
doaj   +1 more source

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