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A wavelength-size tunable Fabry–Pérot laser

A wavelength-size laser cavity with a movable end mirror enables single-mode operation and 25% fractional tuning of a terahertz quantum cascade laser.

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Fig. 1: Tuning the second longitudinal mode (ν2) by changing the cavity length.


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Correspondence to Nathan Jukam.

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Jukam, N. A wavelength-size tunable Fabry–Pérot laser. Nat. Photonics 13, 823–825 (2019).

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