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  2. Active laser medium - Wikipedia

    en.wikipedia.org/wiki/Active_laser_medium

    The active laser medium (also called a gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of photons through electronic or molecular transitions to a lower energy state from a higher energy state previously populated by a pump source. Examples of active laser media include:

  3. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Laser gain medium and type Operation wavelength(s) Pump source Applications and notes Dye lasers: 390-435 nm , 460-515 nm (coumarin 102), 570-640 nm (rhodamine 6G), many others Other laser, flashlamp Research, laser medicine, [2] spectroscopy, birthmark removal, isotope separation. The tuning range of the laser depends on which dye is used.

  4. Ruby laser - Wikipedia

    en.wikipedia.org/wiki/Ruby_laser

    The ruby laser is a three level solid state laser. The active laser medium (laser gain/amplification medium) is a synthetic ruby rod that is energized through optical pumping, typically by a xenon flashtube. Ruby has very broad and powerful absorption bands in the visual spectrum, at 400 and 550 nm, and a very long fluorescence lifetime of 3 ...

  5. Laser construction - Wikipedia

    en.wikipedia.org/wiki/Laser_construction

    The gain medium is the major determining factor of the wavelength of operation, and other properties, of the laser. Gain media in different materials have linear spectra or wide spectra. Gain media with wide spectra allow tuning of the laser frequency. There are hundreds if not thousands of different gain media in which laser operation has been ...

  6. Organic laser - Wikipedia

    en.wikipedia.org/wiki/Organic_laser

    Organic solid-state narrow-linewidth tunable dye laser oscillator using a dye-doped polymer as gain medium [4]. Solid-state dye lasers are organic tunable lasers that use a variety of organic gain media, such as laser dye-doped polymers (DDP), [5] laser dye-doped ormosil (DDO), [6] and laser dye-doped polymer-nanoparticle (DDPN) matrices.

  7. Er:glass laser - Wikipedia

    en.wikipedia.org/wiki/Er:glass_laser

    An Er:glass laser (erbium-doped glass laser) is a solid-state laser whose active laser medium is erbium-doped glass. Ytterbium (Yb) is sometimes added to these lasers to improve their efficiency. Er:glass lasers emit light in the infrared region of the electromagnetic spectrum, often in the range of 1530–1560 nanometers .

  8. Fiber laser - Wikipedia

    en.wikipedia.org/wiki/Fiber_laser

    A fiber laser (or fibre laser in Commonwealth English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. They are related to doped fiber amplifiers, which provide light amplification without lasing.

  9. Neodymium-doped yttrium orthovanadate - Wikipedia

    en.wikipedia.org/wiki/Neodymium-doped_yttrium...

    Neodymium-doped yttrium orthovanadate (Nd:YVO 4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate.It is commonly used as an active laser medium for diode-pumped solid-state lasers.

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