نتایج جستجو برای: erbium doped fiber amplifier

تعداد نتایج: 194703  

2005
Cheng Cheng Min Xiao

Applying an inversing method and a genetic algorithm, two radial distributions, i.e., a core graded-index and erbium-doped concentration, are optimized for an erbium-doped fiber amplifier (EDFA) in a two-level model under single-mode condition and weakly guided approximations. There is evidence to show that the core graded-index has obvious influence on the gain bandwidth of the EDFA, and simil...

2001
B. N. Samson L. Dong

We report a peak gain of 1.2dB/cm at 1535nm in an Erbium:Lutecium codoped Al/P/Si fibre fabricated using a standard MCVD and solution doping technique. This is the highest gain per unit length yet reported in an Erbium doped fiber amplifier. The incorporation of Lutetium into the glass is shown to reduce the erbium ion clustering within the fiber. The highest gain per unit length yet reported f...

Journal: :Optics express 2004
C de Matos J Taylor

We present a totally fiber integrated chirped-pulse amplification system using air-core photonic bandgap fiber and a conventional erbium-doped fiber amplifier. ~40-ps input pulses, generated in a Mach-Zehnder modulator, were stretched and spectrally broadened in a dispersion-shifted fiber before being amplified and subsequently compressed in 10 m of anomalously-dispersive photonic bandgap fiber...

2016
Himanshu Singh Sunny Tyagi

Fiber loss is a fundamental limitation in realizing long haul point to point fiber optical communication links and optical network. One of the advance technology in the recent year is the advent of ERBIUM DOPED FIBER AMPLIFIER. It is essential element in DWDM .In this paper gain and performance analysis of EDFA has been studied.

Journal: :Journal of Applied Sciences 2009

Journal: :Optics and Photonics Journal 2014

2016
Sunil P. Singh

As light pulses propagate along the optical fiber, their energy dissipates. Beyond a certain distance the number of photons in pulses becomes too small to be detected. The optical pulses in fibers are energized by utilizing optical fiber amplifiers. The rapid growth of the internet and data traffic in optical fiber communication networks has stimulated the study of wideband optical amplifiers. ...

2001
P. S. André J. L. Pinto

This paper reports on theoretically investigated transmission performance depending on the chirping and extinction ratio for a 1550 nm, 10Gb/s transmissions system with the standard single mode fiber. The transmission performance can be improved by adjusting chirp and extinction ratio in a Ti:LiNbO3 modulator-based transmitter and erbium-doped fiber amplifier (EDFA)-PIN receiver configuration.

Journal: :Optics letters 2003
Lei Xu Ivan Glesk Darren Rand Varghese Baby Paul R Prucnal

Beating noise in narrow-linewidth erbium-doped fiber ring lasers puts severe limitations on applications of the lasers. We demonstrate the suppression of beating noise in fiber ring lasers by using a semiconductor optical amplifier in the laser cavity, which acts as a high-pass filter. Two different ring structures are presented as examples to demonstrate this beating noise suppression.

Journal: :IEICE Transactions 2005
Andrew Che-On Chan Malin Premaratne

In this paper, a detailed model of a hybrid dual-stage Raman/erbium-doped fiber (EDF) amplifier is presented. This model takes into account the impact of double Rayleigh backscattering (DRB) noise, amplified spontaneous emission (ASE) noise and Kerr-nonlinearity induced impairments in the amplification process. Using this model, we present a comprehensive analysis of the operation of hybrid dua...

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