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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 25 — Dec. 16, 2013
  • pp: 30545–30552

Mid-IR optical amplification and detection using quantum cascade lasers

Dingkai Guo, Xing Chen, Liwei Cheng, Alexey Belyanin, and Fow-Sen Choa  »View Author Affiliations

Optics Express, Vol. 21, Issue 25, pp. 30545-30552 (2013)

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Amplification and detection characteristics of mid-infrared quantum cascade lasers (QCLs) are studied. The QCL amplifier has an adjustable bandwidth and tunable gain peak to function as a tunable mid-IR filter. By biasing the QCL slightly below its threshold, we demonstrated more than 11dB optical gain and over 28dB electrical gain at specified wavelengths. In the electrical gain measurement process, the resonant amplifier also functioned as a detector. Mid-IR amplification and detection can be achieved using the same material for the laser source. This indicates that intersubband based gain materials can be ideal candidates for mid-IR photonic integrations.

© 2013 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 9, 2013
Revised Manuscript: November 7, 2013
Manuscript Accepted: November 29, 2013
Published: December 5, 2013

Dingkai Guo, Xing Chen, Liwei Cheng, Alexey Belyanin, and Fow-Sen Choa, "Mid-IR optical amplification and detection using quantum cascade lasers," Opt. Express 21, 30545-30552 (2013)

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