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光学入的Milliwatt低语画廊微空激光器微空激光器

Huiqi Li1, Zhaocong Wang1, Lei Wang1

  • 1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, China.

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研究人员开发了一种新的固态低语画廊模式激光器,实现了千瓦的排放. 这一突破克服了对紧型微激光器输出功率和效率的先前限制.

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科学领域:

  • 光子学和激光技术的发展
  • 材料科学 材料科学 材料科学

背景情况:

  • 低声画廊模式 (WGM) 微腔激光器提供高Q系数和紧的设计,对于微激光器的开发至关重要.
  • 以前的固态WGM激光器面临着低输出功率和光学转换效率的挑战,限制了实际应用.

研究的目的:

  • 为了实现1.06微米的固态耳语画廊模式激光器的毫瓦级激光辐射.
  • 为了提高WGM微腔激光器的输出功率和光学转换效率.

主要方法:

  • 制造一个直径为30微米的WGM微腔,使用结晶性合酸石榴石 (Nd:YAG) 薄膜.
  • 使用碳植入增强蚀刻用于薄膜制备.
  • 设计了一个奇特的微空洞,用于高效的自由空间光合和波导集成.

主要成果:

  • 从固态WGM微腔中,在1.06微米处证明了毫瓦激光辐射.
  • 实现了1.12mW的最大输出功率和12.4%的光转换效率.
  • 集成了微腔与波导,产生单波长的辐射,输出功率为0.5mW,光转换效率为6.18%.

结论:

  • 成功开发了一种高功率,高效的固态低语画廊模式激光器.
  • 新奇的奇特微腔设计可促进高效的送和集成.
  • 这一进步为紧的光子源提供了一个有前途的解决方案.