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DFB QCL laser的特點(diǎn)：DFB QCL laser DFB型量子級(jí)聯(lián)激光器，用于氣體光譜研究或者氣體跟蹤，具有優(yōu)良的單模特性，窄線寬，以及通過溫度或者電流調(diào)節(jié)波長(zhǎng)等特性?？晒ぷ饔谶B續(xù)或者脈沖模式。

For gaz spectroscopy or trace gaz detection, single-mode, well-defined narrow linewidth lasers with precise tunability are required. For this purpose, quantum cascade lasers are built with a grating in the cavity that allow to exhibit an excellent single-mode behavior. DFB-QCLs can be precisely tuned with temperature （slow tuning） or current （quick tuning）, and deliver a reasonable amount of output power.

 

• Room temperature or Cryogenic operation
  
   
• Output power:
  • Average: 2 - 10 mW
  • Peak : 100 - 500 mW
  
   
• Beam divergence （full angle）:
  • 60° perpendicular
  • 40° parallel