Operation of erbium-doped fiber amplifiers and lasers pumped with frequency-doubled Nd:YAG lasers

An optical amplifier consisting of an erbium-doped germanosilicate fiber optically pumped at 532 nm is described. Negligible excited-state absorption at 532 nm allows efficient pumping, enabling a gain of 34 dB at 1536 nm to be obtained for only 25 mW of pump power. The pulsed pump source produces n...

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Bibliographic Details
Published in:Journal of lightwave technology 1989-10, Vol.7 (10), p.1473-1477
Main Authors: Farries, M.C., Morkel, P.R., Laming, R.I., Birks, T.A., Payne, D.N., Tarbox, E.J.
Format: Article
Language:English
Subjects:
426002 - Engineering- Lasers & Masers- (1990-)
ALLOYS
AMPLIFIERS
CRYSTAL DOPING
Doped-insulator lasers and other solid state lasers
ELECTRONIC EQUIPMENT
ELEMENTS
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ENGINEERING
ERBIUM ADDITIONS
ERBIUM ALLOYS
Erbium-doped fiber amplifier
Erbium-doped fiber lasers
Exact sciences and technology
EXCITED STATES
FABRY-PEROT INTERFEROMETER
FIBERS
FREQUENCY SELECTION
FUNCTION GENERATORS
Fundamental areas of phenomenology (including applications)
GERMANIUM
INTERFEROMETERS
Laser excitation
LASER MATERIALS
Laser noise
LASERS
MATERIALS
MEASURING INSTRUMENTS
METALS
NEODYMIUM LASERS
NOISE
OPTICAL FIBERS
Optical noise
Optical pulses
Optical pumping
Optics
OXYGEN COMPOUNDS
Physics
PULSE AMPLIFIERS
PULSE GENERATORS
Pump lasers
Q-SWITCHING
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SILICATES
SILICON COMPOUNDS
SOLID STATE LASERS
STIMULATED EMISSION
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Description
Summary:An optical amplifier consisting of an erbium-doped germanosilicate fiber optically pumped at 532 nm is described. Negligible excited-state absorption at 532 nm allows efficient pumping, enabling a gain of 34 dB at 1536 nm to be obtained for only 25 mW of pump power. The pulsed pump source produces negligible noise on the small signal if the pump repetition rate is above 10 kHz. Pulsed laser operation is achieved by pumping a Fabry-Perot erbium-doped fiber laser with a frequency-doubled Q-switched Nd:YAG laser. Pulses of 0.9-W peak power and 280-ns duration at 1.538- mu m were obtained.< >
ISSN:0733-8724
1558-2213
DOI:10.1109/50.39083