The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate an ultra-short cavity 1.5-μm single-mode directly-modulated VCSELs with record modulation bandwidth of 22 GHz at room temperature operation.
We review the state-of the art of long-wavelength VCSELs. Furthermore, the short-cavity concept which has already been successfully implemented in 1.55 μm devices is extended to 1.3 μm devices resulting in excellent static and dynamic device properties. In particular, high output powers of 1.8 mW at an ambient temperature of 80 °C, high differential quantum efficiencies up to 56% and wall-plug efficiencies...
The latest advances in -nm high-speed short-cavity vertical-cavity surface-emitting lasers (VCSELs) are presented. The electrical, optical, and thermal design of these devices is discussed with respect to their high-speed modulation behavior. The implemented design improvements allow high output powers for ambient temperatures up to , high differential quantum...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.