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 tunable semiconductor lasers based on three coupled photonic crystal sections, that allows up to 18 nm tuning range with a side-mode suppression ratio greater than 35 dB.
We report on transforming the low-quality, spatially multi-mode output beam from a broad area laser diode into a high-quality (TEM00) beam by diffraction in a volume hologram written into a photorefractive crystal.
We report a tunable laser source emitting in the visible (530 nm, 630 nm) and the near infrared (775 nm, 1060 nm, and 1550 nm) regions by frequency summation of a dual wavelength Er/Yb co-doped fiber laser.
A diode-pumped Q-switched laser oscillator with a liquid-nitrogen-cooled Yb:YAG ceramics active mirror has been demonstrated. 7.5-mJ pulse energy and 30-W average power were obtained. The maximum optical and slope efficiency were 62% and 71%, respectively.
We successfully demonstrated NO2 detection based on differential absorption cavity ringdown spectroscopy using a dual wavelength passively locked external cavity diode laser. Selective trace NO2 detection was achieved in a 2 ml compact ringdown cell.
A flexible saturable-absorber mirror was piezoelectrically vibrated for Q-switching of a laser-diode-pumped Nd3+:YVO4 microchip laser. The double Q-switch led to increase of the peak pulse-power and of the repetitive-pulse stability in power and rate.
We describe the fabrication of a novel type of saturable absorber mirrors based on polymer embedded carbon nanotubes and we demonstrate their performance in mode-locking an Er/Yb:glass laser: 68 fs (45fs Fourier limit) at 85 MHz repetition-rate.
We report the generation of a 10 GHz 2.5 ps pedestal-free optical pulse from a seeded gain-switched DFB laser diode and a compressing nonlinear amplifying loop mirror suitable for multiplexing into a 100 Gb/s transmission system.
We report a diode-pumped high repetition rate chirped-pulse Yb:KGW regenerative amplifier delivering tens of microjoules pulse energy at repetition rates of up to 300 kHz.
We demonstrate for the first time Q-switched and mode-locked laser operation of the Li6Y(BO3)3:Yb3+ crystal. Up to 140 muJ pulse energy and down to 355 fs pulse duration were achieved.
A pair of nearly identical volumetric Bragg gratings held at different temperatures serving as the end mirrors of a Ti:sapphire laser made possible very narrow output linewidth and enabled easy optimization of the laser output.
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.