445nm 4W 200um fiber coupled laser diode module is with B9 package, the product size is compact, the photodiode and the TE Cooler is optional. The fiber core of this laser module is 200um, the fiber numerical aperture is 0.22. If customers want to change the fiber, it is also ok, the 50um, 200um and 400um multi-mode fiber is also available. This 445nm 4W 200um fiber coupled laser diode module is with high coupling efficiency, high performance and long lifetime, and it is easy for customers to integrate into their devices, now this type of laser module is widely used in a variety of fields, widely praised by customers. Wavespectrum Laser can also customize the other power version 445nm 200um fiber coupled laser diode modules according to the customer’s requirement.