Demonstration of the self-mixing effect in interband cascade lasers

K. Bertling, Y. L. Lim, T. Taimre, D. Indjin, P. Dean, R. Weih, S. Hoefling, M. Kamp, M. von Edlinger, J. Koeth, A. D. Rakic*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this Letter, we demonstrate the self-mixing effect in an interband cascade laser. We show that a viable self-mixing signal can be acquired through the variation in voltage across the laser terminals, thereby removing the need for an external detector. Using this interferometric technique, we have measured the displacement of a remote target, and also demonstrated high resolution imaging of a target. The proposed scheme represents a highly sensitive, compact, and self-aligned sensing technique with potential for materials analysis in the mid-infrared. (C) 2013 AIP Publishing LLC.

Original languageEnglish
Article number231107
Number of pages3
JournalApplied Physics Letters
Volume103
Issue number23
DOIs
Publication statusPublished - 2 Dec 2013

Keywords

  • OPTICAL FEEDBACK
  • INTERFEROMETER
  • DIODE

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