At present the most common types of laser pointers that are available in the market are green and blue. Therefore it is necessary for us to know something about both of the laser pointers to get a holistic idea about the laser pointers. Let us start with the green laser pointer. This is the first variety of laser pointer that came to the market in the year 2000. This green laser pointer is the most commonly used laser pointer. Such laser pointers are more complex in nature than the red laser pointers. Perhaps a question come to your mind, how such green laser light is obtained? For your information it may be mentioned here that such light is generated in an indirect way. The process starts with an infrared laser diode. The entire process depends upon dielectric mirror.

The power of output of this blue laser is about 5 mw. According to the Guinness Book of World record the most powerful laser has been developed in Shanghai. This giant laser has won the award of the wicked laser of the year 2007. Its output power is more that 200 mw. In recent times LBO takes place of KTP to double the power release. Another new feature is used in the laser pointers of recent years is that they use KTP crystal in the place of two different discrete ones. There are also some green laser pointers, which are operated in pulse mode. Such mode is also known as Quasi Continuous Wave (QCW). This mode is used only to make less the cooling problem and enhance the life of the battery.

The blue laser pointer hit the market in the year 2006. This laser pointer has almost same basic mode of construction. In this laser pointer, BBO crystals are fitted to enhance the frequency and KTP is used to lower power. In some cases, blue laser can put together with InGaN semiconductor. It is a special fabrication, where frequency doublers is not required. Nichia, a Japanese company, controls maximum market of blue laser.