High power and high beam quality CW green beam generated by diode-side-pumped intracavity frequency doubled Nd:YAG laser

✍ Scribed by Xian-Kun Cheng; Qian-Jin Cui; Yong Zhou; Zhi-Min Wang; Jia-Lin Xu; Yong Bo; Qin-Jun Peng; Da-Fu Cui; Zu-Yan Xu

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 396 KB
• Volume: 282
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2009.07.046

✦ Synopsis

We report a stable high power and high beam quality diode-side-pumped CW green laser from intracavity frequency doubled Nd:YAG laser with LBO crystal. By using a advanced resonator, a large fundamental mode size in the laser crystal and a tight focus in the nonlinear crystal could be obtained simultaneously, which are favorable for high power and high beam quality CW green laser generation. The green laser delivered a maximum 532 nm output power of 40 W. The corresponding optical-to-optical conversion efficiency and electrical-to-optical conversion efficiency were 8.6% and 5.0%, respectively. Under 532 nm output power of 34 W, the beam quality factor was measured to be 1.6.