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.
A single-frequency doubly resonant optical parametric oscillator is pumped by a master oscillator-fiber power amplifier whose pulse duration is varied for 40 ns to 10 µs, enabling to optimize the pumping parameters.
We report the continuous mode-locked operation of a picosecond, singly-resonant, synchronously-pumped optical parametric oscillator (SPOPO) based on ZGP. The ZGP SPOPO emits in the 4-6 μm range with signal power higher than 800 mW.
We investigate spectral shaping of the parametric gain in a double-pass doubly resonant OPO. The experimental demonstration is made possible by our specific OPO design that enables the precise control of the backward relative phase.
We report on experimental investigation and modelling of thermal effects in high-power pulsed OPOs. A significant improvement of the conversion efficiency is demonstrated when a proper temperature gradient is applied to the nonlinear crystal.
For CO2 differential-absorption LIDAR, the single-mode output of a type-II PPLN entangled-cavity nanosecond doubly-resonant OPO emitting at 2.05 mum is amplified to 11 mJ, with 3 MHz rms frequency stability and a M2 < 1.9.
We present a new, low threshold, narrow linewidth, entangled cavity scheme for nanosecond OPO. Thanks to this compact design, open loop single longitudinal mode operation is achieved over hours with 5 MHz short term stability.
The OPO arrangement with intracavity OPA at the idler wavelength is experimentally and theoretically investigated in the context of pulsed devices emitting several mJ. Benefits and drawbacks are discussed versus the conventional singly resonant OPO.
Active mode-locking of a near degenerate (~1064 nm) doubly resonant periodically poled LiNbO3 OPO pumped at 532 nm is reported. Pulse durations as short as 700 ps are observed.
We show that a guided-wave approach to Fresnel phase-matching is relevant even for thick semiconductor wafers. This approach is implemented to design a bulk GaAs optical parametric oscillator and a terahertz generator by difference-frequency generation.
We present what we believe to be the first demonstration of high resolution molecular spectroscopy in the mid-infrared by a free running pulsed optical parametric oscillator. Absorption spectroscopy of N2 O is demonstrated as an application
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.