Main > Chinese Optics Letters >  Volume 17 >  Issue 7 >  Page 071402 > Article
Chinese Optics Letters, Vol. 17, Issue 7, 071402 (2019)

Watt-level continuous-wave and passively Q-switched red lasers pumped by a single blue laser diode

Yuxia Zhang1, Yilun Yang2, Lianhan Zhang2, Dazhi Lu1, Min Xu2, Yin Hang2, Shishen Yan3, Haohai Yu1,*, and Huaijin Zhang1,**

Author Affiliations

  • 1State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China
  • 2Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3College of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China


Praseodymium-ion-doped gain materials have the superiority of lasing at various visible wavelengths directly. Simple and compact visible lasers are booming with the development of blue laser diodes in recent years. In this Letter, we demonstrate the watt-level red laser with a single blue laser diode and Pr:YLiF4 crystal. On this basis, the passively Q-switched pulse lasers are obtained with monolayer graphene and Co:ZnO thin film as the Q-switchers in the visible range.