Femtosecond laser inscription of optical waveguides in Bismuth ion doped glass.
We report on the fabrication of high quality embedded channel waveguides inside Bi-doped silicate glass using femtosecond waveguide inscription. Waveguides are fabricated using both single and multi-scan fabrication techniques. Refractive index modifications of up to Deltan = 4.3 x 10(-3) are observed, allowing the fabrication of waveguides nearly mode-matched to telecom fibers. When optically pumped at 980 and 810 nm broadband fluorescence emission centered at 1.3 microm with a FWHM of up to 500 nm is detected.
Psaila
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ND
Physics, School of Engineering and Physical Sciences, Heriot Watt University, Riccarton, Edinburgh, EH14 4AS, Scotland. a.k.kar@hw.ac.uk
Thomson
R R
RR
Bookey
H T
HT
Kar
A K
AK
Chiodo
N
N
Osellame
R
R
Cerullo
G
G
Brown
G
G
Jha
A
A
Shen
S
S