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What is the full form of LASER?

Full form of LASER: Here, we are going to learn about the LASER, full form of LASER, overview, history, properties, advantage and disadvantages.
Submitted by Anushree Goswami, on November 28, 2019

LASER: Light Amplification by Stimulated Emission of Radiation

LASER is an abbreviation of Light Amplification by Stimulated Emission of Radiation. It is an electronic device that operates to produce in effect electromagnetic radiation of light. Through optical amplification, this process of production of electromagnetic radiation is achieved.

LASER full form


In 1917, the first theoretical foundation of the laser was given by Albert Einstein, but in 1960, the first laser was built by Theodore H. Maiman at Hughes laboratory. It was fundamentally based on the theory given by Charles Hard Townes and Arthur Leonard Schawlow.


The LASER radiation has very exceptional properties that make them used in a distinct type of application. It is used to produce a vast collection of electronic devices like CD ROMs, Barcode readers, etc.

The laser light is very narrow and consistent.


  • The lasers are used in CD and DVD ROMs.
  • The lasers are used in Barcode Scanners.
  • The lasers are used in an integral part of Nuclear Fusion Reactors.
  • The lasers are used in a different types of devices i.e. cutting, drilling, surface treatment, soldering, welding devices.
  • The lasers are used in medical equipment i.e. dentistry, cosmetic treatment devices.
  • The lasers are used in laser printing machines.
  • The lasers are used in military equipment i.e. anti-missile devices.

Advantages of Lasers

  • In the communication field, it is used for transmission of information because It has huge information supporting ability.
  • For telecommunication as well as computer networking this phenomenon of no interference of electro-magnetic is used in optical wireless communication through free space because the laser radiation is free from this interference.
  • Laser radiation has very least signal leakage.
  • Laser-based fiber optic cables are used in fiber optic communication systems because they are very light in weight.
  • Lasers are vastly used in the medical field for the treatment of cancers because they are less damaging compared to X-rays. They are used to burn small tumors on the eye surface and also on the tissue surface.

Disadvantages of Lasers

  • Lasers are costly and therefore those patients who need laser-based treatments have more expenditure.
  • Lasers are costly to maintain and therefore there is involvement of high cost to doctors and management of the hospital.
  • Lasers raise the convolution and period of the treatment based on laser devices or equipment.
  • Lasers cannot be used in many regularly performed dental proceedings for e.g. to fill cavities between teeth etc.
  • Lasers cause damage to human beings and in the duration of contact frequently burn them.

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