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<p>The implementation and characterization of green external cavity diode lasers (ECDL) in Littrow configuration is presented. It is specifically developed for Raman spectroscopy. Eight distinct green laser diodes are systematically characterized and compared: six broad-area diodes and two transverse single-mode diodes. All diodes achieve wide tuning ranges between 8&#xa0;nm and 12&#xa0;nm and output powers of more than 100&#xa0;mW. One of the transverse single-mode diodes reached 45&#xa0;mW maximum output power, which is sufficient for Raman measurements. Preliminary Raman measurements using a broad-area diode laser demonstrate the feasibility of this ECDL setup for spectroscopic applications.</p>

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Green external-cavity diode lasers for Raman spectroscopy: tunability, linewidth, and performance comparison

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月28日

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  • Julia Lukaszewski,
  • Enrico Dietz,
  • Susanne Schröder,
  • Maximilian Buder,
  • Heinz-Wilhelm Hübers

摘要

The implementation and characterization of green external cavity diode lasers (ECDL) in Littrow configuration is presented. It is specifically developed for Raman spectroscopy. Eight distinct green laser diodes are systematically characterized and compared: six broad-area diodes and two transverse single-mode diodes. All diodes achieve wide tuning ranges between 8 nm and 12 nm and output powers of more than 100 mW. One of the transverse single-mode diodes reached 45 mW maximum output power, which is sufficient for Raman measurements. Preliminary Raman measurements using a broad-area diode laser demonstrate the feasibility of this ECDL setup for spectroscopic applications.