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Title: Efficient Er/sup 3+/-doped optical fiber amplifier pumped by a 1. 48. mu. m InGaAsP laser diode

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.101448· OSTI ID:6594591

Optical gain characteristics of an Er/sup 3+/ -doped silica fiber have been studied by end pumping with a 1.48 ..mu..m InGaAsP high-power laser diode. A gain as high as 12.5 dB was obtained for an absorbed pump power of 16 mW with a 3-m-long fiber. By constructing an Er/sup 3+/ fiber ring cavity with a 3 dB single-mode fiber coupler, we have obtained continuous wave laser oscillation at a wavelength of 1.553 ..mu..m.

Research Organization:
NTT Optical Communication Laboratory, Tokai, Ibaraki-ken 319-11, Japan
OSTI ID:
6594591
Journal Information:
Appl. Phys. Lett.; (United States), Vol. 54:4
Country of Publication:
United States
Language:
English