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OSA: Measurement of Green Laser for Material Processing

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Green lasers are lasers that emit light with a wavelength of 532 nm (green) and are used for material processing and marking. The wavelength of the green laser enables the spot size to be reduced, enabling fine processing. In addition, since green laser has a wavelength at which the light absorption rate of metals such as gold, copper, nickel, and iron is high, the irradiation power during processing can be suppressed and damage to the target object can be reduced.

A green laser generates half the wavelength (532 nm) from the excitation light of a semiconductor laser or fiber laser having a wavelength or 1064 nm using a wavelength conversion element such as SHG (Second harmonic generation). By this principle, the output light contains some excitation light. However, since the green laser used for precision processing requires singularity of wavelength, the excitation light component must be sufficiently suppressed, which is evaluated as the pumping light suppression ratio.

The applicable models can simultaneously measure 532 nm and 1064 nm with high resolution and a wide dynamic range, so it is easy to perform accurate measurement of the excitation light suppression ratio of the green laser. It is useful for evaluation of light sources in the development department of laser marking equipment and laser processing equipment manufacturers, the acceptance inspection department of parts, or the development and manufacturing divisions of laser manufacturers that deliver to equipment manufacturers.

 

Diode Pumped Solid State Laser (DPSSL)

Diode Pumped Solid State Laser (DPSSL)

Optical Spectrum of Diode Pumped Solid State Laser (DPSSL)

Optical Spectrum of Diode Pumped Solid State Laser (DPSSL)

相关产品和解决方案

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光谱分析仪 AQ6374

AQ6374覆盖了350 ~ 1750nm的宽范围波长,包括可见光(380 ~ 780nm)和通信领域。

可见光波长光谱分析仪 AQ6373E 350 - 1200 nm

  • 0.02 nm 分辨率
  • ±50 pm 精度
  • 60 dB 动态范围
  • -80 dBm 功率灵敏度
  • 单模和多模
  • 工业和生物医学激光测试

宽范围波长光谱分析仪 AQ6374E 350 - 1750 nm

  • 0.05 nm 分辨率
  • ±50 pm 精度
  • 60 dB 动态范围
  • -80 dBm 功率灵敏度
  • 单模和多模
  • 从可见光到通信波长

短波长光谱分析仪 AQ6373

AQ6373提供的350nm到1200nm专用短波长量程可以精确测量380nm到780nm的可见光谱,因此适用于生物科学和其它领域。此型号产品还是测量1064nm Nd:YAG, DPSS激光源的常用工具。

短波长光谱分析仪 AQ6373B

AQ6373B提供的350nm到1200nm专用短波长量程可以精确测量380nm到780nm的可见光谱,因此适用于生物科学和其它领域。此型号产品还是测量1064nm Nd:YAG, DPSS激光源的常用工具。

Precision Making

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