Open AccessWide wavelength tunability and green laser operation of diode-pumped Pr^3+:KY_3F_10
Author(s) -
Philip Werner Metz,
Sebastian Müller,
Fabian Reichert,
Daniel-Timo Marzahl,
Francesca Moglia,
Christian Kränkel,
G. Huber
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.031274
Subject(s) - laser , materials science , optics , wavelength , diode , optoelectronics , continuous wave , tunable laser , laser diode , green laser , slope efficiency , fiber laser , physics
We report on wide spectral tunability of a quasi-continuous wave Pr(3+):KY(3)F(10) laser under InGaN laser diode excitation at 445 nm. The total tuning range exceeded 100 nm in the visible spectral range on several intervals between 521 nm and 737 nm. The broadest continuously tunable region of almost 50 nm extended from 688 nm to 737 nm. Furthermore we present what is to the best of our knowledge the first demonstration of continuous wave laser operation in Pr(3+):KY(3)F(10) on three transitions in the green spectral region. The highest output power of 121 mW was achieved at an emission wavelength of 554 nm with a slope efficiency of 27%.