TY - JOUR
T1 - Light propagation studies on laser modified waveguides using scanning near-field optical microscopy
AU - Borrisé, Xavier
AU - Abadal, Gabriel
AU - Jiménez, David
AU - Pérez-Murano, Francesc
AU - Barniol, Núria
AU - Davis, Zachary James
AU - Boisen, Anja
PY - 2001/8/1
Y1 - 2001/8/1
N2 - By means of direct laser writing on Al, a new method to locally modify optical waveguides is proposed. This technique has been applied to silicon nitride waveguides, allowing modifications of the optical propagation along the guide. To study the formed structures, a scanning near-field optical microscope (SNOM) has been used. The laser modifications locally changes the optical properties of the waveguide. The change in the effective refractive index is attributed to a TE to TM mode conversion. Thus, the laser modification might be a new way to fabricate optical mode converters.
AB - By means of direct laser writing on Al, a new method to locally modify optical waveguides is proposed. This technique has been applied to silicon nitride waveguides, allowing modifications of the optical propagation along the guide. To study the formed structures, a scanning near-field optical microscope (SNOM) has been used. The laser modifications locally changes the optical properties of the waveguide. The change in the effective refractive index is attributed to a TE to TM mode conversion. Thus, the laser modification might be a new way to fabricate optical mode converters.
KW - Integrated optics
KW - Novel lithographic techniques
KW - Optical measurements
KW - Polarization conversion
KW - Scanning near-field optical microscopy (SNOM)
UR - https://www.scopus.com/pages/publications/0035423472
U2 - 10.1109/68.935811
DO - 10.1109/68.935811
M3 - Article
SN - 1041-1135
VL - 13
SP - 809
EP - 811
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
ER -