Multifunctional Optical Crystals for All-Solid-State Raman Lasers

• Main Authors: Hui Zhao, Shibo Dai, Siqi Zhu, Hao Yin, Zhen Li, Zhenqiang Chen
• Format: Article
• Language: English
• Published: MDPI AG 2021-01-01
• Series: Crystals
• Subjects: multifunctional crystal; Raman laser; self-Raman; self-frequency-doubled Raman
• Online Access: https://www.mdpi.com/2073-4352/11/2/114

In the past few decades, the multifunctional optical crystals for all-solid-state Raman lasers have been widely studied by many scholars due to their compactness, convenience and excellent performance. In this review, we briefly show two kinds of multifunctional Raman crystals: self-Raman (laser and Raman effects) crystals and self-frequency-doubled Raman (frequency-doubling and Raman effects) crystals. We firstly introduce the properties of the self-Raman laser crystals, including vanadate, tungstate, molybdate and silicate doped with rare earth ions, as well as self-frequency-doubled Raman crystals, including KTiOAsO₄ (KTA) and BaTeMo₂O₉ (BTM). Additionally, the domestic and international progress in research on multifunctional Raman crystals is summarized in the continuous wave, passively Q-switched, actively Q-switched and mode-locked regimes. Finally, we present the bottleneck in multifunctional Raman crystals and the outlook for future development. Through this review, we contribute to a general understanding of multifunctional Raman crystals.