A Broadband Pulsed External-Cavity Quantum Cascade Laser Operating near 6.9μm

• 作 者: 罗威 段传喜
• 机 构: College of Physical Science and Technology,Central China Normal University,
• 出 处: Chinese Physics Letters
• 发表日期: 2016年02期
• 关键词: tuning amplifier mirror ambient tuned cascade grating coated continuously facet

We report an external cavity quantum cascade laser(EC-QCL) operating near 6.9 μm using the Littman-Metcalf configuration.The EC-QCL works in a pulsed mode and can be tuned continuously from 1340 to 1640 cm~(-1)by only tilting the tuning mirror.The fine tuning ability of the EC-QCL is demonstrated by measuring the absorption spectrum of water in the ambient air with a lock-in amplifier.

EC-QCL works in a pulsed mode and can be tuned continuously from 1340 to 1640 cm -1 by only tilting the tuning mirror. The fine tuning ability of the EC-QCL is demonstrated by measuring the absorption spectrum of water in the ambient air with a lock-in amplifier.