The fact that most terrestrial optical fibre communications systems installed around the world today operate at 1.3µm means that a practical fibre amplifier operating in this window is of key strategic importance. The primary contender to provide amplification within this window is the praseodymium doped fluoride fibre amplifier(PDFFA). To date high gains (>30dB) and high saturated output powers ( >200mW)[1] have been achieved but have required the use of large- frame ion lasers as primary optical pump sources. The main difficulty in using semiconductor laser diodes as a pump source is the very high level of pump power needed in this comparatively low efficiency system. One approach that has proved successful in erbium doped fibre power amplifiers is to use a solid state crystal laser to convert the large, but spatially incoherent output from 800nm semiconductor laser diode bars into a TEM00 output which can then be efficiently coupled into the doped fibre[2].

© 1992 Optical Society of America

PDF Article
More Like This
High Output Power from an Efficient Praseodymium Doped Fluoride Fibre Amplifier1

Tim Whitley, Richard Wyatt, Daryl Szebesta, and Steve Davey
WB2 Optical Amplifiers and Their Applications (OAA) 1992

Noise and Cross-Talk Characteristics of a Praseodymium Doped Fluoride Fibre Amplifier1

Tim Whitley, Richard Wyatt, Simon Fleming Daryl Szebesta, J R Williams, and Steven T Davey
TUA2 Optical Amplifiers and Their Applications (OAA) 1993

1.3 µm-Band Pr-Doped Fluoride Fiber Amplifier Module Pumped by Laser Diodes

Makoto Shimizu, Makoto Yamada, Fumiaki Hanawa, Yasutake Ohishi, Jiro Temmyo, Masato Wada, and Yukio Terunuma
PD3 Optical Amplifiers and Their Applications (OAA) 1992


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription