High-power ps InGaAs diode laser MOPA system for efficient frequency doubling in periodically poled KTP

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• 作者：H. Fuchs ; M.A. Tremont ; O. Casel ; D. Woll ; T. Ulm ; J.A. L’huillier and R. Wallenstein
• 刊名：Applied Physics B: Lasers and Optics
• 出版年：2007
• 出版时间：May, 2007
• 年：2007
• 卷：87
• 期：3
• 页码：425-430
• 全文大小：464 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  Physical Chemistry
  Laser Technology and Physics and Photonics
  Quantum Optics, Quantum Electronics and Nonlinear Optics
  Optical Spectroscopy and Ultrafast Optics
  Physics and Applied Physics in Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0649

文摘

This paper reports on a mode-locked InGaAs master oscillator power amplifier (MOPA) system that generates at 920 nm 14-ps-long pulses with a repetition rate of 4.3 GHz and an average power of 2.7 W. Single-pass frequency doubling in a periodically poled KTP crystal provides 550 mW of blue 460-nm radiation. The power of the blue output, which corresponds to a conversion efficiency of more than 20%, was optimized by a detailed investigation of the influence of various system parameters like injection current and repetition rate on pulse power, pulse duration, and spectral shape of the infrared laser pulses.