At SPIE 2020 conference, we presented a blue diode laser that provides 200W output from a 200μm core diameter 0.22 NA fiber. Blue laser with high power and high brightness is the best choice for higher efficiency demanded by industrial processing. Based on 7 modules each provides 160W from a 105μm core diameter 0.22 NA fiber (NA 0.15/0.22 power ratio >93%), using fiber beam combining, 1000W output is achieved from a 330μm core diameter 0.22 NA fiber. And the aging test of 160 W unit modules was carried out. 1000W high brightness blue laser source is an ideal choice for processing (welding, 3D printing, etc) of non-ferrous metals, especially copper.
In order to optimize the output parameters of 808nm array of high-power microchannel heat sink package, the fluid thermodynamic characteristics of 50 × 10 array were simulated. The thermal distribution of the simulation results was used to guide the array assembly. The spectral characteristics of each bar in the stacked array were observed by near-field fiber scanning probe. The simulation results show that the flow rate of the stacked bar decreases gradually from bottom to top, the temperature of the bar increases gradually, and the flow rate of each stacked bar decreases slowly as it is far away from the water outlet. When the flow rate at the entrance of the stack array is 10 L/min, the temperature difference between the bottom and top bar of a single stack array is 13.1 °C, the flow rate difference is 0.24 L/min, and the FWHM width of the stack array spectrum can reach 4.5nm. The temperature of the active region is calculated by measuring the wavelength shift of each bar in a single stacked array, and the results are consistent with the simulation results. The spectral characteristics of the array can be effectively improved by assembling the array according to the temperature distribution.
Due to high metal absorptivity, the 450nm blue diode laser revolutionizes the processing of high reflection metal (Cu, Au, SS), with its sputtering free, stable melt pool, and good surface quality. Therefore, high power blue diode laser can be used in the 3C field, electrical vehicle, and additive manufacturing fields. Moreover, low power blue diode laser can also be used for wood carving, laser display, and medical use. BWT Ltd was founded in 2003 in Beijing, China. For over 18 years, BWT has specialized in developing and manufacturing high-performance diode lasers for customers all over the world. BWT blue diode laser team has successfully launched the 1000Watt 330um 0.22NA high brightness 450nm blue diode laser in January of 2021. BWT blue diode laser products can be listed into three categories, according to their power range and applications. High power- metal processing 1KW 330um 0.22NA 500W 220um 0.22NA Middle power-3C field, laser display. 300W 200um 0.22NA 150W 105um 0.22NA Low power-wood craving, medical use. 50W 200um 0.22NA 30W 105un 0.22NA 3W 105um 0.22NA The advantages of BWT blue diode laser are high cost performance, a wide range of output powers, professional RD group, customer-oriented service, high stability and reliability, compact size, etc. Besides blue diode laser, BWT also provides other competitive products, such as: Medical multi-wavelength diode laser Wavelength locked pumping diode laser Vertical stack and fiber-coupled bar products Fiber laser and ultrafast laser. Please feel free to contact BWT through the channels below: Website: https://www.bwt-bj.com/en Email: sales@bwt-bj.com Telephone: +86-10-83681052/3/4
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.