Abstract

Coupled-cavity lasers have been operated in a single longitudinal mode under high-speed modulation,¹ and recently cleaved versions have been used in long-distance optical fiber experiments at 1.55 μm.² Although relatively easy to fabricate, these devices generally require carefully adjusted bias currents and an adjustable controlled temperature. To operate in a more practical environment, it is generally believed that some sort of feedback control which can adapt to environmental changes as well as to device aging will be necessary. Some initial demonstrations have been performed.³

© 1984 Optical Society of America