TY - JOUR
T1 - Femtosecond laser inscription of low insertion loss waveguides in Z-cut lithium niobate
AU - Bookey, Henry T.
AU - Thomson, Robert R.
AU - Psaila, Nicholas D.
AU - Kar, Ajoy K.
AU - Chiodo, Nicola
AU - Osellame, Robert
AU - Cerullo, Giulio
PY - 2007/6/15
Y1 - 2007/6/15
N2 - A low insertion loss waveguide is fabricated in z-cut lithium niobate using femtosecond laser waveguide inscription. To fabricate a waveguide exhibiting both low propagation and coupling losses, we used the multiscan fabrication technique to control the size of the waveguide cross section. A minimum insertion loss of only 3.5 dB at 1550 nm was measured for the 18-mm-long waveguide when directly coupled to Corning SMF-28 fibers. Of this 3.5 dB, we attribute 2.1 dB to coupling losses, 1.1 dB to propagation losses, and 0.3 dB to Fresnel reflections. © 2007 IEEE.
AB - A low insertion loss waveguide is fabricated in z-cut lithium niobate using femtosecond laser waveguide inscription. To fabricate a waveguide exhibiting both low propagation and coupling losses, we used the multiscan fabrication technique to control the size of the waveguide cross section. A minimum insertion loss of only 3.5 dB at 1550 nm was measured for the 18-mm-long waveguide when directly coupled to Corning SMF-28 fibers. Of this 3.5 dB, we attribute 2.1 dB to coupling losses, 1.1 dB to propagation losses, and 0.3 dB to Fresnel reflections. © 2007 IEEE.
KW - Buried optical waveguides
KW - Femtosecond laser writing
KW - Lithium niobate (LN)
KW - Optical device fabrication
UR - https://www.scopus.com/pages/publications/34249803578
U2 - 10.1109/LPT.2007.897534
DO - 10.1109/LPT.2007.897534
M3 - Article
SN - 1041-1135
VL - 19
SP - 892
EP - 894
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 12
ER -