Quasi-continuous-wave 1065 nm laser oscillation in Nd3+-doped bismuth borate glasses

✍ Scribed by Y.J. Chen; X.H. Gong; Y.F. Lin; Z.D. Luo; Y.D. Huang

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 310 KB
• Volume: 33
• Category: Article
• ISSN: 0925-3467
• DOI: 10.1016/j.optmat.2010.08.005

✦ Synopsis

Nd 3+ -doped bismuth borate glasses were synthesized by the conventional melt-quenching method and the spectroscopic properties related to the operation of 1.06 lm laser were investigated. Efficient quasi-continuous-wave laser oscillations around 1065 nm were demonstrated in the glasses. In a hemispherical cavity end-pumped by a Ti:sapphire laser, a maximum output peak power of 185 mW with slope efficiency of 25% was achieved in a 3.1-mm-thick 0.5Nd 2 O 3 Á99.5(4Bi 2 O 3 Á6B 2 O 3 ) glass, and the absorbed pump threshold was about 70 mW. Furthermore, laser oscillation was achieved in a range from 1058 to 1075 nm, which shows that tunable and ultra-short pulse lasers may be realized in the glasses.