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Ultralow power optical interconnect with zero-biased, ultralow threshold laser-how low a threshold is low enough?

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

Ultralow threshold (I/sub th/<100 μA) lasers can be used in ultralow power optical interconnect, preferably in a bias-free digital optical modulation format. We show that even though optical power requirements for successful transmission may dictate that the pulse drive current be many times that of I/sub th/, reducing the latter to 10-100 pA is still essential in minimizing the total driver power to the laser at multi-gigabit data rates.

Published in:

IEEE Photonics Technology Letters  (Volume:7 ,  Issue: 1 )