Development of VCSELs for Atomic Clock Applications
نویسندگان
چکیده
This article describes the process of transferring an 850 nm VCSEL structure to devices emitting at 895 nm, a wavelength required for cesium-based atomic clocks. We discuss all the effects to be considered and present photoluminescence measurements of the modified quantum well structure. In addition, the influence of δ-doping in distributed Bragg reflectors on VCSEL characteristics, namely threshold current, maximum output power, and differential quantum efficiency, is investigated.
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تاریخ انتشار 2009