主要参数                                                                     型号Item NO.                                      LM-500波长Wavelength (nm)                                                    532输出功率Output Power (mW)                                       500工作方式Working Mode                                               CW线宽Spectral Linewidth (nm)                                          <0.1偏振方式Polarization                                                   Line polarization偏振比Polarization Ratio                                               >100:1光束质量Beam Quality (M2 factor)                                <1.2光束发散角Beam Divergence (full angle, mrad)               1.2±0.2光束直径Beam Diameter at Aperture (mm)                      1.2±0.2尺寸Dimension (mm)                                                   Di￠40*220                                                                                   光束椭圆度Beam Roundness                                         >90%功率稳定性Power Stability (RMS, over 1 hours)             <15%预热时间Warm-up Time (minutes)                                 <3工作温度Operation Temperature (℃)                              18~30使用寿命Expected Lifetime (hours)                                >5000保修期Warranty Time                                                    3 months