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if the beam quality is poor, it is no use to use telescope to reduce the beam waist. and you may loss most of your energy. So first thing to do is know about the beam quality of the laser.
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tong5028(½ð±Ò+1,VIP+0):thank you! µ«¼¤¹â¹²¾Û½¹¼¼ÊõÓõđªÔ“²»ÊÇÆ½Ðйâ°É.ÎÒ¾ßÌåÏë×öµÄÊǰÑ1mmŒˆµÄƽÐм¤¹âͨ¹ý…îЩ·½·¨£¬±ä³ÉÖ»ÓÐ0.02mm×óÓÒŒˆ¶ÈµÄƽÐм¤¹â¡£ 7-24 15:41
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