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1 January 1991 Efficient, high-power, high-gain Er3+-doped silica fiber amplifier
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Proceedings Volume 1373, Fiber Laser Sources and Amplifiers II; (1991)
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States
We present results demonstrating that Er doped silica fibres may be operated as efficient high power oscillators and high gain power amplifiers in the 1i5um telecommunications window. Investigation of the saturation behaviour of a number of different fibre types is undertaken. The best of these provides 140mW of amplified output for a 1mW input signal at 1. SSpm pumped with 180mW at 1. 48pm. Pumping with higher powers at 980nm provides in excess of 500mW output for the same input signal power. Quantum efficiencies greater than 80 are achieved for both pump wavelengths. A 980nm contra-directionally pumped grating tuned oscillator is demonstrated giving a tunable output of over 250mW for lasing wavelengths between 1. 52jm and 1. S7jm and a launched power of 540mW. This represents an internal quantum efficiency in excess of 95. The results of two systems experiments utilising the power amplifiers are also presented. The first demonstrates a ten channel WDM network broadcasting to over 7 users111 and the second an unrepeatered 250km 2. 4Gbit/s transmission system12
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jennifer F. Massicott, Richard R. Wyatt, B. James Ainslie, and S. P. Craig-Ryan "Efficient, high-power, high-gain Er3+-doped silica fiber amplifier", Proc. SPIE 1373, Fiber Laser Sources and Amplifiers II, (1 January 1991);

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