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.
Optical frequency combs provide an equidistant grid of optical frequency components, enabling a wide array of diverse and new technologies [1]. One such application is photonic microwave generation where optical frequency combs provide unprecedented low-noise performance via optical frequency division [2]. Although providing excellent performance, it comes at the expense of size and complexity. In...
Application of active disks reduces thermally induced optical effects in powerful solid-state lasers significantly [1]. The next step to improve the quality of output laser emission together with increasing of the output power may be done while using multi beam pumping and degenerate laser cavity configuration [2]. The resonator should be designed to cover in series of all the pumped areas in the...
For obtaining a single frequency Q-switched laser output injecting a continuous wave single frequency master laser into a Q-switched laser is a commonly used technique [1]. For a stabilized injection seeding a Fast Fourier Transform (FFT) based single heterodyne beat signal technique will be presented.
Q-switched lasers operating in the nominally eye-safe 2 μm wavelength region are important for applications such as material processing, medicine, LIDAR systems, and pumping of optical parametric oscillators based on ZnGeP2 or periodically poled GaAs. Many of these benefit from wavelengths above 2.05 μm, which are not accessible by the actually widely used Tm-lasers. The long upper laser level lifetime...
The thin disk-shaped active medium is a very thin laser crystal with one face mounted on a heat sink. The large cooled-surface-to-active-volume ratio avoids thermal problems occurring in conventional high power rod or slab lasers and enables high power TEM00 operation. However, the absorption of pump light in the thin disk crystal for single pass is very small in the end-pumped configuration. A classical...
Silicon nitride (Si3N4) waveguide platforms [1,2] are interesting candidates for optical interconnects and sensing applications [3] thanks to high quality passive components, transparency for NIR and visible wavelengths and their compatibility with CMOS process technology. Unfortunately, no native light sources are available for Si3N4 platforms and the integration of active materials, i.e. III-V compounds,...
Applications in long-range ranging and tracking require nanosecond pulsed lasers with high pulse energy (tens of millijoules), high beam quality and high repetition rate (tens of kHz). It also necessary to use wavelengths with high atmospheric transmission and preferably with high eye-safety factor. These requirements are not easily met by conventional laser media such as Er doped laser and optical...
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.