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Appl Opt. 2015 Oct 1;54(28):8339-43. doi: 10.1364/AO.54.008339.

Analysis of mode-hop free tuning of folded cavity grating feedback lasers.

Abstract

We analytically study an external cavity laser structure including a folded cavity. A steering mirror is utilized in the folded cavity to deflect the intracavity laser beam. A mode-hop free tuning range of ∼400  GHz can be achieved by control of the steering mirror, and a fast tuning rate is expected because of the small mass of the steering mirror. This technique has potential for applications in spectroscopy for turbulent media, especially in the mid-infrared region.

PMID:
26479606
DOI:
10.1364/AO.54.008339

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