VBG analysis
[ Basic concept ]
VBG ( volume Bragg grating )
VBG is a type of diffraction grating used to control the wavelenghts of light using
Lasing
Lasing is the process of generating and amplifying a high-intensity and coherent beam of light using a laser device through a process called stimulated emission.
It has many practical applications and has revolutionized variosu fields of study and technology.
* Stimulated emission(유도 방출) :
단층형 레이저 (single-layer laser)
A single-layer laser is a type of laser with a single active layer of laser material in its cavity.
( It is commonly used fo engraving, cutting, and marking,
and is simpler and more affordable than multi-layer lasers, but has lower power output )
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