Low-heat Solid-state Lasers
نویسنده
چکیده
The paper discusses the processes that determine the parasitic heat generation and its distribution in the solid-state laser materials. It is inferred that the balance between the laser emission and heat generation is determined by the characteristics of the pumping system and by the partial efficiencies of the various steps of the flow of excitation between the energy levels of the laser material and the design of laser resonator contributes to the spatial distribution of thermal field. Solutions for improvement of this balance and for scaling to high power are discussed
منابع مشابه
Heat Generation and Removal in Solid State Lasers
Based on the type of laser gain medium, lasers are mostly divided into four categories; gaseous, liquid (such as dye lasers), semiconductor, and solid state lasers. In recent past years, solid state lasers have been attracted considerable attentions in industry and scientific researches to achieve the high power laser devices with good beam quality. In solid state lasers the gain medium might b...
متن کاملWavelength Selectable Solid-State Raman lasers in the Visible and Ultraviolet Ranges
Solid-state Raman lasers are known as important sources at normally difficult to access wavelengths, and our recent studies have shown that they also form the basis of a class of wavelength selectable lasers. This paper summarizes our recent studies in wavelength selectable Raman lasers in the visible (532-650 nm) and ultraviolet (266-321 nm).
متن کاملHeat-fraction-limited CW Yb:YAG cryogenic solid-state laser with 100% photon slope efficiency.
We report the demonstration of a heat-fraction-limited CW Yb:YAG laser operating near 77 K with output at 1029 nm, pumped with a diffraction-limited room-temperature CW Nd:YAG laser operating at 946 nm. With a 50% reflectivity outcoupler, the average threshold absorbed pump power was 18.8 mW and the average slope efficiency 91.9%, close to the heat-fraction limited value of 91.5%. Average optic...
متن کاملApproach for power scaling solid-state lasers with intracavity motion.
Solid-state lasers are typically limited by adverse thermal effects within the gain medium. In this Letter we describe a new method for dramatically reducing thermal effects in an end-pumped solid-state laser by incorporating a rotating intracavity periscope in the resonator to spatially separate the lasing and thermal processes. In contrast with previous examples of moving solid-state lasers, ...
متن کاملThe evolution of the diode laser
In modern dentistry applications, two different types of laser occupy dominant positions: gas lasers and solid-state lasers. The first of these categories includes the Co2 laser (10 600 nm) and the argon laser (480 + 515 nm), while examples of the solid-state laser are the Nd:YAG (1064 nm), Er:YAG (2940 nm), Er:CrYSGG (2780 nm) and the diode laser (mainly 810 and 980 nm). As the name suggests, ...
متن کامل