Beteiligte:
Sorokin, Evgeni;
Bushunov, Andrey A.;
Tolstik, Nikolai;
Teslenko, Andrei A.;
Einmo, Eskil;
Tarabrin, Mikhail K.;
Lazarev, Vladimir A.;
Sorokina, Irina T.
Erschienen:
Optica Publishing Group, 2022
Erschienen in:
Optical Materials Express, 12 (2022) 2, Seite 414
Sprache:
Englisch
DOI:
10.1364/ome.452026
ISSN:
2159-3930
Entstehung:
Anmerkungen:
Beschreibung:
We report the proof-of-concept of an operational laser active medium with a depressed cladding waveguide manufactured in the volume of a Cr2+:ZnS single-crystalline sample and antireflection microstructures fabricated on its facets exclusively by femtosecond laser processing techniques. This allowed us to achieve transmittance in a broad range from 2 to 8 µm, approaching a maximum of over 90% near 2.5 µm, and lasing at 2275 nm at the average output power of 20 mW for the absorbed pump power of 500 mW with the slope efficiency of 5.5 %. This demonstration opens up a route towards the industrial fabrication of compact integrable laser sources and sensors based on II-VI materials.