Golden Light company founded Optical Technology Institute in 2002. Our Laser quality is much better than before owing to the foundation of the Institute. The mission of our institute is to research new lasers to support the application fields of science in Korea and provides many applications to our customers for their innovative productivity. GL Laser Research Lab is developing new laser technology to obtain the high laser beam stability. Recent research theme is developing the laser system to obtain the high power laser output and this laser shows the polarized light, low thermal birefringence of crystals, and long fluorescence lifetime. Our researchers are doing experiments in clean rooms to protect our lasers from the exterior environment like dust. Our researchers are making every efforts to develop the high stability and efficiency lasers. Product Development Center of Golden Light company are making every efforts to manufacture high quality lasers which are developed at GL Laser Research Lab. Also, we are making Power supplies, TEC controllers, Digital delay pulse generators, and other additional devices to apply to industry and education. To derive the high stability of lasers, we are precisely manufacturing all devices and protect our lasers from the exterior environment. Golden Light has released many software programs to control our lasers and additional devices such as TEC temperature controller and Digital pulse generators. Golden Light has a responsibility to change our products according to the requirement of our customers We hope our products will be efficient products for our customer applications.