Semiconductor lasers have strict requirements on working conditions, and improper working or storage conditions will cause rapid deterioration of performance and even failure. Therefore, the laser drive power supply that makes the laser work normally is particularly important. The low-cost availability of infrared laser pointer modules with up to 1000 mW (1 watt) output has created a generation of infrared pumped, frequency doubled, green, blue and violet diode-pumped solid-state Laser pointer with visible power up to 300 mW. Because the invisible infrared components in these visible laser beams are difficult to filter out, and additional heat is generated after filtering, and this heat is difficult to dissipate in the small pocket "laser pointer" package, so it is usually left as a beam component. Cheap high-power pointer. When pointing at nearby objects and people, this invisible IR component creates a certain degree of additional potential hazard in these devices. The laser driver LDD is a continuous working mode, while the transimpedance amplifier TIA and the limiting amplifier LA need to support a burst working mode. At the user end (ONU), the transimpedance amplifier TIA and the limiting amplifier LA support continuous working mode, and the laser driver LDD needs to support burst working mode.
The 1000mw laser pointer has a high safety design and high stability. The 1000mW adjustable focus infrared laser pointer adopts a multi-faceted safety design. This portable infrared laser pointer is designed with an LED power indicator and a double safety lock on the laser pointer housing. In addition, the heat dissipation system ensures the stability and high-efficiency energy output of the infrared laser pointer during continuous operation. Special application of invisible light beam. The 1000mW infrared laser pointer beam is widely used in scientific research, industry and military fields because of its invisible light. It is used for enemy monitoring and positioning in the military field. In addition, infrared lasers are also used in fields such as currency verification and medical treatment. The laser in our common optical disc drive uses a semiconductor as the laser medium, and the excitation energy is an electric field, which is a semiconductor solid-state laser. Most of the high-power lasers used in the military are excited by chemical energy, which is a chemical laser. Most of the lasers used in industry use carbon dioxide as the laser medium, and the electric field as the excitation energy.