Laser modules are compact, integrated devices that combine a laser source
with necessary optical, electrical, and mechanical components.
They are designed to emit highly concentrated, coherent light beams,
making them essential in a wide range of industries.
Working PrincipleAt the core of a laser module is a lasing medium,
which can be a solid (such as neodymium - doped yttrium aluminum garnet - Nd:YAG),
a gas (like helium - neon - HeNe), or a semiconductor.
When an external energy source, known as pumping,
is applied to the lasing medium, it excites the atoms or molecules within.
These excited particles then release photons through a process called stimulated emission.
The optical cavity within the module,
typically formed by mirrors at both ends, further amplifies and directs these photons,
resulting in a focused,
high - intensity laser beam emerging from the module.
