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.
The first VCSEL-based O2 sensor for gas/oil furnace applications employing a diffuse reflector is presented which circumvents alignment and interference problems. Optimized data processing is used for long-term stable operation and allows for real-time measurement.
Successful application of recently developed GaSb-based single-mode vertical-cavity surface-emitting lasers for gas-sensing at 2.3 mum is reported. CO and CH4 have been detected simultaneously using wavelength modulation spectroscopy with a multi-line curve fit concept.
Record fundamental mode output power of 8 mW at 0degC and 6.5 mW at room temperature is achieved with wafer-fused VCSELs incorporating regrown tunnel junction and emitting at the 1550 nm waveband.
InP-based, long-wavelength VCSELs utilizing a buried tunnel junction (BTJ), emitting at 1.55 mum with improved active region and reduced parasitics are demonstrated. A superior modulation-bandwidth >10 GHz is achieved up to 85degC. Potential bit-rates of 12.5 or even 17 Gb/s are feasible for cost-effective 100 G Ethernet solutions at metro-range.
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.