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The 'inverted' gain-levered semiconductor laser-direct modulation with enhanced frequency modulation and suppressed intensity modulation

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1 Author(s)
Lau, K.Y. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

A gain-levered semiconductor laser has enhanced efficiencies in both intensity modulation (IM) and frequency modulation (FM). It is shown that by inverting the bias points of the gain and modulation sections, a mode of operation referred to as 'inverted' gain-lever, the FM efficiency is suppressed. The large FM-to-FM ratio makes it a desirable source for an FM optical transmitter.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:3 ,  Issue: 8 )