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基于垂直微腔的光器件为自由空间与光纤中传播的光信号提供了简易的接入方式,极大地降低了器件封装的成本。垂直外腔表面发光激光器(也被称为半导体盘形激光器)结合了固态激光器和半导体激光器的优点,为开发新型紧凑的激光光源提供了新方法。对基于垂直腔的短脉冲源的研究现状进行一个简单的综述后,介绍了一些基于1.55μm波长的亚皮秒光脉冲源的最新研究结果。这种脉冲源由InP基的垂直面发射激光器和GaAs基的半导体饱和吸收镜构成。
Optical devices based on vertical microcavities provide easy access to optical signals propagating in free space and fiber, dramatically reducing the cost of device packaging. Vertical external cavity surface emitting lasers (also known as semiconductor disk lasers) combine the advantages of solid-state lasers and semiconductor lasers to provide a new way to develop new, compact laser sources. After a brief review on the research status of the short pulse source based on vertical cavity, some new research results of sub-picosecond optical pulse source based on 1.55μm wavelength are introduced. This pulsed source consists of an InP based vertical-surface emitting laser and a GaAs-based semiconductor saturable absorber.