Construction of Nd YAG laser

Nd: YAG is a solid state laser four level laser. Nd stands for neodymium and YAG for Yttrium aluminium garnet (Y3Al5O12). It is developed by J.E. Geusic, H.M. Marcos and L.G. Van Vitert in 1964. The rod of Y3Al5O12­ is doped 1% with triply ionized neodymium. Nd3+ ions will replace the Y3+ ions in the crystal. Maximum length of the rod is about 10 cm and diameter is 6-9 cm.

Active medium: Nd3+ ions act as active medium or active centers. YAG is just the host.

Pumping source: The pumping of Nd3+ ions to upper levels is done by krypton arc lamp. Xenon lamp can also be used as pumping source. Thus, the optical pumping is used to achieve population inversion.

Optical resonator system: The ends of the Nd:YAG rod are polished and silvered so as to act as the optical resonator system.

Note: In next article, I will explain the working. Till then, try to make the construction diagram. In case of any problem, post in the comment section.

Reference: This article is referred from my authored book “optics and lasers” having ISBN 978-81-272-2948-2

Kindly Read This Also :

Note from winnerscience: If you want the e-notes of all the laser  articles that will include the basics of lasers like stimulated absorption, difference between spontaneous and stimulated emission, Einstein  Coefficients, properties and applications of lasers, complete construction and working of lasers like Ruby laser, He-Ne laser, Carbon dioxide laser, Nd:YAG laser, dye laser, semiconductor laser, holography and additional articles of Q-switching and mode locking, then please contact winnerscience@gmail.com. You can post your queries also there.

This entry was posted in LASER and tagged , , , , , , , , , , , . Bookmark the permalink.

4 Responses to Construction of Nd YAG laser

  1. Pingback: Carbon Fiber Car Parts

  2. Steive says:

    Dear sir, can you please send me the details of all types of laser…
    i have a subject named modern optics in that i have a complete study on lasers, so can you please email the complete details…… (the basics of lasers like stimulated absorption, difference between spontaneous and stimulated emission, Einstein Coefficients, properties and applications of lasers, complete construction and working of lasers)

    • amit_physics says:

      Dear Steive,
      All the articles mentioned by you are available in website. You can search it. If there is any problem then please let me know.

  3. chinmai says:

    good

Leave a Reply