High-beam quality, high-efficiency laser based on fiber with heavily Yb(3+)-doped phosphate core and silica cladding.
Opt Lett
; 40(16): 3762-5, 2015 Aug 15.
Article
en En
| MEDLINE
| ID: mdl-26274654
ABSTRACT
We have fabricated and tested a composite fiber with an Yb(3+)-doped phosphate glass core and silica cladding. Oscillation with a slope efficiency of 74% was achieved using core pumping at 976 nm with fiber lengths of 48-90 mm in a simple laser configuration, where the cavity was formed by a high-reflectivity Bragg grating and the cleaved fiber end. The measured M(2) factors were as low as 1.05-1.22 even though the fiber was multimode at the lasing wavelength.
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01-internacional
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MEDLINE
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En
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Opt Lett
Año:
2015
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Article