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- W2005657624 abstract "A system gain of 40 dB was realized with a semiconductor injection-laser oscillator operating into a neodymium-glass-fiber laser amplifier. InAsP ingots were grown by a modified Czochralski technique. The injection laser was fabricated from a mixed crystal of InAs <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>0.17</inf> P <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>0.83</inf> . This composition was chosen because laser emission occurs at 1.063 μ at liquid nitrogen temperatures. The p-n junction was obtained by zinc diffusion under phosphorus pressure. The method of fabricating contacts and the Fabry-Perot cavity is described, and optical and electrical characteristics of the devices are given. Coarse tuning of the lasing wavelength is based on <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>x</tex> . Fine tuning can be accomplished by temperature variation of the laser junction in accordance with <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>dlambda/dT = 1.6</tex> Å/°K between 80- 140°K. The injection laser was optically mated to the samarium-clad neodymium-glass-fiber amplifier by microscope optics and a gimbal-mounted reflector. Design details of the optical amplifier are given in context with optimum low-noise-level operation. The peak optical amplifier wavelength can be varied over a 100- Å interval by appropriate choice of the host-glass composition. The injection-laser pulse was delayed until the spontaneous emission had reached its peak for a maximum observed gain of approximately <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>5 times 10^{4}</tex> ." @default.
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- W2005657624 date "1970-06-01" @default.
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- W2005657624 title "Optical amplification of 1.06-µ InAs<inf>1-x</inf>P<inf>x</inf>injection-laser emission" @default.
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- W2005657624 doi "https://doi.org/10.1109/jqe.1970.1076485" @default.
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