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Ultra-low reflectivity 1.5 μm semiconductor laser preamplifier

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4 Author(s)
Olsson, N.A. ; AT&T Bell Lab., Murray Hill., NJ ; Oberg, M.G. ; Tzeng, L.D. ; Cella, T.

Reports travelling-wave 1.5 μm semiconductor laser amplifiers with very low gain ripple. The average facet reflectivity is less than 5×10-5 over a 170 Å interval. The minimum gain ripple is below the measurement accuracy, 0.2 dB, at 27.5 dB gain. When used as an optical preamplifier in a 4 Gbit/s receiver, a sensitivity of -34.3 dBm is achieved

Published in:

Electronics Letters  (Volume:24 ,  Issue: 9 )

Date of Publication:

28 Apr 1988

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