Different coloured LEDs, which are commonly used in electronic devices and toys, are built in a simpler manner than Laser Diode. Simple experiments using mirrors from ordinary life will be used to understand how a laser diode works. Reflections will be increased if the individual seeing the mirror is wearing another sheet in front of his back. The earliest phenomena of curiosity is many reflections.
The second, on the other hand, can be described as mirrors. Phoenician (Venetian) mirror that, while being as translucent as windows, reflects everything as if it were a mirror. The similar effect may be seen when a light is turned on in a dark room and we only see our reflection in the window but others outside can see all aspects of the inside. Every side of a diode laser is covered with layers that reflect light. One is completely reflective, while the other (called a semi-permeable mirror) is somewhat reflective. This mirror configuration is an optical resonator, whose function it is to reflect light.
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