Results 31 to 40 of about 208,947 (326)

Research on Key Technologies of Single Carrier 800 Gbit/s Optical Transmission System

open access: yesGuangtongxin yanjiu, 2022
Wavelength Division Multiplexing (WDM) system has been evolving and upgrading in the direction of high speed, long distance and large capacity. In recent years, with the maturity of high-speed optoelectronic devices, the research and application of ...
Rui TANG   +3 more
doaj   +1 more source

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

open access: yes, 1999
We consider the interaction between a Bose-Einstein condensate and a single-mode quantized light field in the presence of a strong far off-resonant pump laser.
C. K. Law   +35 more
core   +1 more source

Stability of grid amplifiers [PDF]

open access: yes, 1998
We present a stability model for quasi-optical grid amplifiers. This model is useful for predicting and suppressing the common-mode oscillations that often occur in amplifier grids. Three stabilization techniques will be discussed.
De Lisio, Michael P.   +3 more
core   +2 more sources

Study of interwell carrier transport by terahertz four-wave mixing in an optical amplifier with tensile and compressively strained quantum wells [PDF]

open access: yes, 1994
Interwell carrier transport in a semiconductor optical amplifier having a structure of alternating tensile and compressively strained quantum wells was studied by four-wave mixing at detuning frequencies up to 1 THz.
Miller, Barry I.   +4 more
core   +1 more source

Semiconductor optical amplifier-based heterodyning detection for resolving optical terahertz beat-tone signals from passively mode-locked semiconductor lasers [PDF]

open access: yes, 2010
An all-optical heterodyne approach based on a room-temperature controlled semiconductor optical amplifier (SOA) for measuring the frequency and linewidth of the terahertz beat-tone signal from a passively mode-locked laser is proposed.
Carney, Kevin   +5 more
core   +1 more source

Development and environmental validation of a compact EDFA with integrated LNA+HPA for satellite optical communications

open access: yesFrontiers in Physics
The Japanese National Institute of Information and Communications Technology (NICT) plans to launch a 6U CubeSat into Low Earth Orbit (LEO) during the Japanese fiscal year 2025.
Alberto Carrasco-Casado   +4 more
doaj   +1 more source

Mathematical model of optical amplifier using nonlinear stimulated Brillouin scattering (SBS) in optical fiber

open access: yesمجلة بغداد للعلوم, 2007
We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier.
Baghdad Science Journal
doaj   +1 more source

Review of Erbium-doped fiber amplifier [PDF]

open access: yes, 2011
Data communication systems are increasingly employing optical fiber communication systems (OFCS) as the transmission paths for information. Various types of optical amplifiers have been developed in OFCS to amplify optical signals.
Ahmad, Harith   +9 more
core   +1 more source

Analytical Investigation of 8-Channel Optical Wavelength Division Multiplexing Communication System [PDF]

open access: yesEngineering and Technology Journal, 2010
In this paper, the theoretical 8-channel Dense Wave Division Multiplexing(DWDM) telecommunication system is demonstrated. Laser Diode (LD) sourcewas used for each channel, with external modulator, therefore making the systemwork at high bit rate.
Mohammed Hussian Ali
doaj   +1 more source

A Systems Theory Approach to the Synthesis of Minimum Noise Phase-Insensitive Quantum Amplifiers

open access: yes, 2018
We present a systems theory approach to the proof of a result bounding the required level of added quantum noise in a phase-insensitive quantum amplifier.
edwards   +7 more
core   +1 more source

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