Journal ArticleDOI
High-gain erbium-doped traveling-wave fiber amplifier
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TLDR
In this paper, a lambda = 1.53 microm signal with +22 dB gain was achieved at 295 K in an Er(3+)-doped single-mode fiber using a Lambda = 514.5 nm pump source.Abstract:
Traveling-wave amplification of a lambda = 1.53 microm signal with +22-dB gain is achieved at 295 K in an Er(3+)-doped single-mode fiber using a lambda = 514.5 nm pump source. The optimum fiber length for maximum gain is determined experimentally. A limit in signal-to-noise ratio that is due to concurrent amplification of spontaneous emission is observed. By cooling the fiber to 77 K, the amplifier gain is increased to +29 dB as a result of depopulation of the lower laser level.read more
Citations
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Modeling erbium-doped fiber amplifiers
TL;DR: Erbium-doped fiber amplifiers are modeled using the propagation and rate equations of a homogeneous two-level laser medium, and numerical methods are used to analyze the effects of optical modes and erbium confinement on amplifier performance.
Journal ArticleDOI
Erbium implanted thin film photonic materials
TL;DR: The role of implantation defects, the effect of annealing, concentration dependent effects, and optical activation are discussed and compared for different Er-doped thin film photonic materials.
Journal ArticleDOI
Tellurite glass: a new candidate for fiber devices
TL;DR: In this paper, the physical properties of R2O-ZnO-TeO2 glasses have been studied for their feasibility for fiber drawing and rare earth doping and a tellurite glass fiber with less than 1 dB/m loss has been made by the rod-in-tube method.
Journal ArticleDOI
Recent developments in rare-earth doped materials for optoelectronics
TL;DR: In this paper, the state of the art in this rapidly growing field is discussed and new classes of materials that open up new possibilities for extended functionality and greater optoelectronic integration are described.
Journal ArticleDOI
Ultrafast fibre lasers
Martin E. Fermann,Ingmar Hartl +1 more
TL;DR: In this paper, essential components and operation regimes of ultrafast fiber laser systems are reviewed, as well as their use in various applications, including industrial, medical and purely scientific applications.
References
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Journal ArticleDOI
Amplification in a Fiber Laser
Charles J. Koester,Elias Snitzer +1 more
TL;DR: In this article, a 1m long fiber was used to amplify 1.06-μ radiation and the gain was measured as a function of pumping energy and time during the pumping pulse at which the amplification was determined.
Journal ArticleDOI
Low-threshold tunable CW and Q-switched fibre laser operating at 1.55 μm
TL;DR: In this article, a single-mode Q-switched Q-mode fiber laser source is described, which is tunable over 25 nm in the wavelength region of 1.55 μm and produces in excess of 2 W peak power in a Qswitched mode.
Journal ArticleDOI
Fabrication and characterization of low-loss optical fibers containing rare-earth ions
TL;DR: In this paper, low-loss fibers containing rare-earths have been produced with high absorption levels in the visible and near infrared regions, which makes the fibers attractive for use in long distributed sensors, as well as low-threshold fiber lasers.
Journal ArticleDOI
Photon Echoes below 1 K in a Nd 3+ -Doped Glass Fiber
TL;DR: Optical dephasing rates of a dilute concentration of ions in a pure silica fiber have been studied from 0.05 to 1.0 K with use of two-pulse photon echoes as discussed by the authors.