Title :
Ultralow power optical interconnect with zero-biased, ultralow threshold laser-how low a threshold is low enough?
Author :
Cutrer, D.M. ; Lau, K.Y.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
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.
Keywords :
integrated optoelectronics; optical fibre communication; optical interconnections; optical modulation; semiconductor lasers; 10 to 100 muA; 100 muA; bias-free digital optical modulation format; multi-gigabit data rates; optical power requirements; pulse drive current; total driver power; ultralow power optical interconnect; ultralow threshold laser; zero-biased; Degradation; Delay effects; Laser beam cutting; Laser feedback; Optical feedback; Optical interconnections; Optical modulation; Optical receivers; Power lasers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
