200results about How to "Increase laser power" patented technology

The invention discloses a method for brazing or fusion-welding through lasers with ultrasonic waves as auxiliaries, which relates to a welding method. The invention solves problems during processes that the lasers are used to braze or fusion-weld coating metals which has low melting points or dissimilar metals, and the problems are that wetting spreading property is bad, filling amount is not enough, stomatas and solders aren't welded fully and the like. The method of the invention is that during the processes that the lasers are used to braze the coating metals which has the low melting points or the lasers are used to fusion-weld the dissimilar metals, simultaneously, the ultrasonic waves with high-frequency vibrations are applied in welding zones which will be coagulated. The invention has the advantages that the occurrences of air holes can be minimized or avoided, and welding cost can be lowered. Welding solders can flow fully due to the high-frequency vibrations, which is beneficial for the wetting spreads of the welding solders and penetrations of the welding solders to the bottom portion of the welding zones, weld pool width and welding filling amount can be increased, the occurrences of welding defects as non-welding fully, undercuts and the like can be avoided, weld formations can be improved, and weld strength can be increased.

The invention provides a preparation method for tellurate glass compound optical fibers. According to the preparation method, an outer coating layer is made of phosphoaluminate glass or lead silicate glass; core fiber glass and inner coating layer glass are made of tellurate glass; the core fiber glass is drawn into a thin rod and is inserted into a glass sleeve prepared from the inner coating layer glass; a core rod with the coating layer glass is drawn on a wire drawing machine; the prepared core rod is inserted into an outer coating layer glass sleeve prepared from the phosphoaluminate glass or the lead silicate glass to be drawn into the multi-coating-layer tellurate glass compound optical fibers. The preparation method has the advantages that the tellurate glass compound optical fibers with high mechanical strength can be prepared and the disadvantages of traditional tellurate glass optical fibers that the fragility is great, and the traditional tellurate glass optical fibers are easy to crack and are not easy to operate are overcome; meanwhile, the good middle infrared transmission capability of the tellurate glass is remained.

The invention comprises: a transmitting end, a receiving end and an optical lens group. Said transmitting end and receiving end are set in parallel. Said optical lens group comprises a first fully-reflecting glass-slide and a second fully-reflecting glass-slide; said first fully-reflecting glass-slide and second fully-reflecting glass-slide are set in parallel for use in guiding the incident light to said receiving end.