Abstract
AbstractWe report the design and characteristics of a simple and compact mode-locked Er-doped fiber laser and its application to broadband cavity-enhanced spectroscopy. The graphene mode-locked polarization maintaining oscillator consumes less than 5 W of power. It is thermally stabilized, enclosed in a 3D printed box, and equipped with three actuators that control the repetition rate: fast and slow fiber stretchers, and metal-coated fiber section. This allows wide tuning of the repetition rate and its stabilization to an external reference source. The applicability of the laser to molecular spectroscopy is demonstrated by detecting CO2 in air using continuous-filtering Vernier spectroscopy with absorption sensitivity of 5.5 × 10−8 cm−1 in 50 ms.
Funder
Fundacja na rzecz Nauki Polskiej
Polish National Agency For Academic Exchange NAWA
Knut och Alice Wallenbergs Stiftelse
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,Physics and Astronomy (miscellaneous),General Engineering
Cited by
11 articles.
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