Home / Standards / GB/T 13739-2011 GB/T 13739-2011 Active Test methods for laser beam widths,divergence angle and transverse mode 激光光束宽度、发散角的测试方法以及横模的鉴别方法 Standard Type GBT ICS 31.260 CCS L51 Status 现行 Issue Date 2011-12-30 Implementation 2012-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会