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2018
An erbium-doped fiber amplifier (EDFA) has five main optical components: an erbium-doped fiber, a laser diode (LD) to pump the fiber, a wavelength-dependent fiber coupler, a polarization-independent optical isolator, and an optical bandpass filter. The LDs operate at wavelengths which include 1.48, 0.98, and 0.82 μm.
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An erbium-doped fiber amplifier (EDFA) has five main optical components: an erbium-doped fiber, a laser diode (LD) to pump the fiber, a wavelength-dependent fiber coupler, a polarization-independent optical isolator, and an optical bandpass filter. The LDs operate at wavelengths which include 1.48, 0.98, and 0.82 μm.
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Frequency doubling in erbium-doped fibers
Optical Materials, 1994Abstract Erbium-doped fibers have been prepared for frequency doubling with various input powers. Annealing experiments were carried out, and a single exponential decay in time was found for the conversion efficiency. An activation energy of ~ 0.2 eV was measured for two fibers with different Er 3+ concentrations. A peculiar modal evolution was also
I.B. Couceiro +4 more
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Multicore erbium doped fiber amplifiers
SPIE Proceedings, 2016ABSTRACT We review recent progress of multi -core erbium -doped fiber amplifiers (MC -EDFA). We confirmed by demonstrating a core -pumped MC -EDFA that MC -EDFs have practical amplification characteristic s and core -to-core crosstalk . Three types of cladding -pumped MC -EDFAs are also reviewed , one uses free space optics, other uses a fiber b undled
Koichi Maeda +3 more
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Multifunctional Erbium Doped-Fiber Laser
Latin America Optics and Photonics Conference, 2010This work present a multifunctional Erbium doped fiber laser by the use of two arrayed waveguide gratings intracavity. The experimental setup allows simultaneous operation of three regimes: passive mode-locking, continuous wave and active mode ...
Cláudia B. Santos, Eunézio A. Souza
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Bistability of erbium-doped fiber laser
Optics Communications, 1998In this paper, we report a study of the dynamic response of an erbium-doped fiber ring laser. When the pump light is sinusoidally modulated with small modulation index, the lasing light displays a resonant peak at a particular modulation frequency. However, as the modulation index was increased, two regions of bistability were observed. Furthermore, by
Liguo Luo, T.J. Tee, P.L. Chu
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A Distributed Erbium Doped Fiber Amplifier
Optical Fiber Communication, 1990To date erbium amplifiers have been based on fiber doped with 10 to 1000 ppm erbium oxide, providing several tens of dB gain in lengths of 100 m or less.[1–4] However, communications systems which use such high gain, "lumped" amplifiers subject the signal to large excursions in amplitude, which can cause significant interchannel interference in a ...
J. R. Simpson +6 more
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Erbium-doped fiber amplifier gain-flatness of a Sagnac loop with an erbium-doped fiber
Chinese Optics, 2020LIU Yi +4 more
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Study of Erbium Doped Fiber Amplifier
2017Optical fiber amplifier is key enabling technology used for high speed optical communication. One of the Amplifiers is Erbium Doped Fiber Amplifier, Which is modeled using the propagation and two level or three level rate equations. The performance of amplifier is depends on various parameters like, Er3+ concentration, fiber length, pump and Signal ...
Sharma, Neha +2 more
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Mode-locking of thulium-doped and Erbium-doped fiber lasers.
1997Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997. ; Includes bibliographical references (leaves 140-152). ; by Lynn Elizabeth Nelson. ; Ph.D.
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