Journal ArticleDOI
Derivation of the threshold pump power of erbium-doped fiber lasers.
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From this it is shown that a relationship between the threshold power and other primary system parameters can be quantitatively specified.Abstract:
Starting from the rate equations describing the interaction between a three-level atom and a two-wavelength field appropriate to the erbium-doped fiber lasers pumped by 980-nm light, we establish an analytical and explicit expression for the threshold pump power of the laser. From this it is then shown that a relationship between the threshold power and other primary system parameters can be quantitatively specified.read more
Citations
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Journal ArticleDOI
Theoretical modeling of Tm-doped silica fiber lasers
Stuart D. Jackson,T.A. King +1 more
TL;DR: In this article, the theoretically determined slope efficiency and threshold pump power for continuous wave (CW) operation of a Tm-doped silica fiber laser are presented, in conjunction with the published and measured spectroscopic parameters as input, the model was used to examine the fiber laser output for a variety of fiber and pump configurations.
Journal ArticleDOI
Analytical model for rare-earth-doped fiber amplifiers and lasers
TL;DR: In this article, an analytical model for two-, three-, and four-level system rare-earth-doped fiber amplifiers and lasers is presented, where fiber-amplifier gain is expressed in terms of attenuation coefficients, intrinsic saturation powers, and cross-saturation powers at the pump and signal wavelengths.
Journal ArticleDOI
Tunable erbium-doped fiber laser with a reflection Mach-Zehnder interferometer
TL;DR: In this article, the concept of a tunable erbium-doped fiber ring laser based on a reflection Mach-Zehnder interferometer was presented, which gave a tuning range of 39 nm.
Journal ArticleDOI
Single-longitudinal-mode erbium-doped fiber laser with the fiber-Bragg-grating-based asymmetric two-cavity structure
TL;DR: In this article, a simple and stable single-longitudinal mode (SLM) erbium-doped fiber linear-type laser is presented, which consists of three FBGs directly written in a photo-sensitive PEDF to form asymmetric two cavities with different cavity lengths.
Journal ArticleDOI
Temporal characteristics of in-band-pumped gain-switched thulium-doped fiber lasers
TL;DR: In this paper, the authors numerically investigated the temporal characteristics of in-band-pumped gain-switched thulim-doped fiber laser (GSTDFL) and found that the threshold pump energy would increase when the pump pulse width was longer than 500 ns and the pulse widths of the laser pulses at the threshold were kept the same at different pump widths.
References
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Journal ArticleDOI
Amplification of spontaneous emission in erbium-doped single-mode fibers
Emmanuel Desurvire,J.R. Simpson +1 more
TL;DR: In this paper, the authors studied the spontaneous emission (ASE) in erbium-doped single-mode fiber amplifiers operating at lambda = 1.53 mu m. The ASE noise spectra obtained from the theory were found to be in excellent quantitative agreement with the experimental data.
Journal ArticleDOI
Gain saturation effects in high-speed, multichannel erbium-doped fiber amplifiers at lambda =1.53 mu m
TL;DR: In this paper, the authors investigated the gain compression effects during multichannel signal amplification in an erbium-doped fiber amplifier at lambda = 1.53 and showed that the fiber amplifier is immune to interchannel interference over a wide range of bit-sequence rates.
Journal ArticleDOI
Theoretical modeling of erbium-doped fiber amplifiers with excited-state absorption.
P.R. Morkel,Richard Ian Laming +1 more
TL;DR: Numerical solution of a general rate-equation model of an erbium-doped fiber amplifier highlights several important features of the device and shows that the detriment in the noise figure previously associated with counterpropagating schemes for only small-signal conditions is similar for strong signals.
Journal ArticleDOI
Erbium fibre soliton laser
TL;DR: Soliton pulses of 2-3.5 ps duration have been generated at 1.56 mu m from a mode-locked erbium-doped fiber laser as mentioned in this paper, where the shortest pulses recorded (1.2 ps in duration) were generated in conjunction with a low level pedestal component.
Journal ArticleDOI
High-quantum-efficiency Er(3+) fiber lasers pumped at 980 nm.
TL;DR: The use of 980 nm as the pump wavelength provides an output that is considerably more efficient than previous results using ~810-nm pumping, where excited-state absorption degrades the lasing performance.