Thulium doped fiber amplifier at 77 K around 794 nm

K. D. Merkel; R. Krishna Mohan

Optical Amplifiers and Their Applications
OSA Trends in Optics and Photonics (Optica Publishing Group, 2000),
paper OMD5

Thulium doped fiber amplifier at 77 K around 794 nm

K. D. Merkel and R. Krishna Mohan

Optical Amplifiers and Their Applications 2000

Québec City Canada
ISBN: 1-55752-642-79

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K. D. Merkel and R. K. Mohan, "Thulium doped fiber amplifier at 77 K around 794 nm," in Optical Amplifiers and Their Applications, A. Mecozzi, M. Shimizu, and J. Zyskind, eds., Vol. 44 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2000), paper OMD5.

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Abstract

A Tm doped ZBLAN fiber amplifier (1000 ppm by molar, 470 cm) is experimentally demonstrated at 77K. Device gain as high as 22dB was observed near 794 nm, and over 100 mW of amplified signal was observed. The fiber was pumped by a long, high power pulse at 780 nm. Cooling of the fiber to 77K caused an increase in the gain of ~16 dB at 794 nm as compared to that observed at 300K.

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