Femtosecond-laser-written, stress-induced Nd:YVO4 waveguides preserving fluorescence and Raman gain.
We report the formation of optical waveguides in the self-Raman Nd:YVO(4) laser crystal by femtosecond laser inscription. The confocal fluorescence and Raman images have revealed that the waveguide is constituted by a locally compressed area in which the original fluorescence and Raman gains of the Nd:YVO(4) system are preserved. Thus the obtained structures emerge as promising candidates for highly efficient self-Raman integrated laser sources.
Silva
W F
WF
Grupo de Fotônica e Fluidos Complexos, Instituto de Física, Universidade Federal de Alagoas, 57072-970, Maceió, Alagoas, Brazil. wagner@fis.ufal.br
Jacinto
C
C
Benayas
A
A
Vazquez de Aldana
J R
JR
Torchia
G A
GA
Chen
F
F
Tan
Y
Y
Jaque
D
D