Generation of tunable and narrow linewidth continuous-wave yellow laser by sum–frequency mixing of diode-pumped solid-state Nd:YAG ring lasers

✍ Scribed by Yuan-Fu Lu; Shi-Yong Xie; Yong Bo; Xiao-Fu Zhang; Qian-Jin Cui; Yong Zhou; Nan Zong; Feng Yang; Qin-Jun Peng; Da-Fu Cui; Zu-Yan Xu

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 356 KB
• Volume: 282
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2009.05.074

✦ Synopsis

We report a tunable, narrow linewidth and high beam quality continuous-wave (CW) yellow laser system at 589 nm. The system is an all solid-state design employing single-pass sum-frequency generation in a KTP crystal by mixing the 1064 nm with 1319 nm lines of two side-pumped Nd:YAG enforcing unidirectional ring lasers. With this method, a CW yellow laser at 589.159 nm with an output power of 0.8 W, a linewidth less than 1.5 GHz and a beam quality M 2 = 1.29 is obtained. The wavelength of the laser also can be precisely tuned from 589.112 to 589.181 nm in step-length of about 0.22 pm.