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  • ​DPSS vs. Green Lasers in Diamond Cutting
​DPSS vs. Green Lasers in Diamond Cutting

In the precision-required world of diamond cutting, understanding the technological tools at our disposal is paramount. Among these, DPSS and green lasers stand out, offering unique benefits driven by their operational variances. This article delves into a technical comparison, shedding light on how these lasers influence the delicate art of diamond cutting.

  1. Technical Comparison:

  2. ⚪ DPSS Lasers:

  3. Wavelength and Power:

    1. DPSS lasers operate at wavelengths around 1064 nm, situated in the infrared part of the spectrum. They are renowned for their high power output, essential for robust cutting and deep engraving applications.

  4. Heat Generation:

    1. The intensity of DPSS lasers, while beneficial for certain applications, generates substantial heat. This aspect necessitates careful calibration to prevent potential damage to sensitive materials like diamonds.

  5. Operational Efficiency:

    1. These lasers are favored for their efficiency, often achieving more in terms of raw cutting power and speed, beneficial for bulk processing.

  6. ⚪ Green Lasers:

  7. Wavelength Precision:

    1. Emitting at approximately 532 nm, green lasers offer a shorter wavelength, translating to higher precision in cutting. This characteristic is crucial for avoiding thermal damage, ensuring the diamond's structural integrity and aesthetic value are maintained.

  8. Spot Size and Focus:

    1. The shorter wavelength allows for a smaller spot size, granting green lasers an advantage in creating intricate designs with minimal deviation.

  9. Heat Dissipation:

    1. Green lasers are associated with lower heat generation, reducing the risk of micro-fractures or color alterations in diamonds, crucial for maintaining the gem's overall quality.

  10. Direct Comparative Analysis:

  11. When it comes to diamond cutting, the choice between DPSS and green lasers hinges on the specific requirements of the task. For operations demanding raw power and deeper cuts, DPSS lasers are the preferred choice. However, for intricate, detail-oriented cutting, green lasers' precision and minimal thermal footprint make them indispensable.

  12. The decision also impacts production timelines and cost. DPSS lasers, with their higher power, can expedite the cutting process, potentially reducing labor hours. Conversely, the precision of green lasers, while more time-consuming, ensures unparalleled accuracy, crucial for high-value diamonds.

  13. Conclusion:

  14. The DPSS and green lasers, each with their technical merits, play pivotal roles in modern diamond cutting. The choice between them is not a matter of superiority but of suitability to the task at hand. By understanding their technical nuances, professionals in the field can make informed decisions, optimizing both the quality of the cut and the efficiency of the process.

  15. Reference List 

  16. Hsu, H., Wu, S.-J., Fu, C.-C., Chu, L., Fu, S., & Nguyen, T.-T. (2014). Cutting PCB with a 532nm DPSS green laser. Proceedings of the IEEE International Microsystems, Packaging, Assembly, and Circuits Technology Conference

  17. Zhang, J., Ma, S., Tan, W., Liu, M., Chen, X., Xiao, J., & Xu, J. (2023). Random spherical microlens array fabricated by elliptical vibration diamond cutting and molding. Applied Optics, 62(7), 484446. 

  18. Topic, F., & Obata, K. (Date of publication). Single-Crystal Diamond Cutting Tool for Ultra-Precision Processing. Journal Name, volume(issue), pages. 

  19. He, W., Liu, C., Xu, G.-p., Zhang, J., Xiao, J., Chen, X., & Xu, J. (2021). Effect of temperature on ductile-to-brittle transition in diamond cutting of silicon. The International Journal of Advanced Manufacturing Technology, 112(1-4), 77-85.


Lumimetric has provided light sources and technical support to many users in the field of laser cut diamonds, and today has compiled a list of the more common questions about laser gemstone cutting.

1. How did they cut diamonds before lasers?/How were diamond cut before lasers?

2. Challenge in Diamond cutting and sawing

3. What are the advantages of laser cutting compared with Traditional Diamond Cutting?

4. How Laser Technology Refines 10 Classic Diamond Cuts?

5. Green Laser vs. DPSS laser In Diamond Cutting.