Very low threshold (Ith∼1 mA) lasers emitting near 1.3 μm have been fabricated using multiquantum-well active region, short cavity length, and high reflectivity facet coatings. A laser-array transmitter utilizing these lasers can be operated without prebias and has negligible timing skew for 1 Gb/s operation. No crosstalk is observed when adjacent elements of the laser array are modulated.
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Dutta et al. (1992) studied this question.
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