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Quantum cascade lasers

Quantum cascade lasers

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In this chapter, we present a brief overview of the QCL technology with an emphasis on the commercially important 3 μm to 12 μm spectral region covering the infrared fingerprint spectral region and the two infrared atmospheric windows (3 to 5 μm and 8 to 12 μm). Specifically, laser core design, waveguide design, and various aspects of mode control for QCLs are discussed below.

Chapter Contents:

  • 4.1 Introduction
  • 4.2 Governing equations for pulsed QCL operation
  • 4.3 Laser core design
  • 4.4 Waveguide design
  • 4.5 CW power scaling
  • 4.6 Beam combining
  • 4.7 External cavity QCLs
  • 4.8 Distributed feedback QCLs
  • 4.9 Conclusion
  • References

Inspec keywords: waveguide lasers; laser modes; quantum cascade lasers; laser beams

Other keywords: wavelength 3 mum to 12 mum; laser core design; waveguide design; mode control; QCL technology; quantum cascade lasers; wavelength 3 mum to 5 mum; infrared fingerprint spectral region; infrared atmospheric windows; wavelength 8 mum to 12 mum

Subjects: Laser beam characteristics and interactions; Semiconductor lasers; Lasing action in semiconductors; Laser beam interactions and properties; Design of specific laser systems; Textbooks

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