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  2. Laser diode - Wikipedia

    en.wikipedia.org/wiki/Laser_diode

    Semi-conductor lasers (Bottom to Top: 660 nm, 635 nm, 532 nm, 520 nm, 445 nm, 405 nm) A laser diode is electrically a PIN diode.The active region of the laser diode is in the intrinsic (I) region, and the carriers (electrons and holes) are pumped into that region from the N and P regions respectively.

  3. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Typically tuned in the range of 700 to 820 nm Flashlamp, laser diode, mercury arc (for CW mode operation) Dermatological uses, LIDAR, laser machining. Erbium–ytterbium and Erbium-doped glass lasers: 1.53–1.56 μm Flashlamp, laser diode Erbium-ytterbium and erbium-doped glass lasers are made in rod, plate/chip, and optical fiber form.

  4. Distributed Bragg reflector laser - Wikipedia

    en.wikipedia.org/wiki/Distributed_Bragg...

    As a result, the laser operates on a single spatial and longitudinal mode. The laser emits from the exit facet opposite the DBR end. The DBR is continuously tunable over approximately a 2 nm range by changing current or temperature. The temperature coefficient is approximately 0.07 nm/K, and the current coefficient is approximately 0.003 nm/mA. [2]

  5. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    In 2012, Nichia and OSRAM developed and manufactured commercial high-power green laser diodes (515/520 nm), which compete with traditional diode-pumped solid-state lasers. [77] [78] Vertical cavity surface-emitting lasers are semiconductor lasers whose emission direction is perpendicular to the surface of the wafer. VCSEL devices typically have ...

  6. Blue laser - Wikipedia

    en.wikipedia.org/wiki/Blue_laser

    They most commonly emit light at 473 nm, which is produced by frequency doubling of 946 nm laser radiation from a diode-pumped Nd:YAG or Nd:YVO4 crystal. [24] Neodymium-doped crystals usually produce a principal wavelength of 1064 nm, but with the proper reflective coating mirrors can be also made to lase at other non-principal neodymium ...

  7. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.