TY - JOUR
T1 - New design for a variable optical attenuator based on a bent channel waveguide
AU - Tomljenovic-Hanic, S.
AU - Krolikowski, W.
PY - 2003/8
Y1 - 2003/8
N2 - We present a new method for bend loss control in a curved channel optical waveguide and employ it in a novel design of a thermo-optic variable optical attenuator. We show that the introduced asymmetric refractive index profile of the wave-guide structure, combined with the optimal placement of the heating electrodes, leads to a significant increase of the dynamic range of the attenuator.
AB - We present a new method for bend loss control in a curved channel optical waveguide and employ it in a novel design of a thermo-optic variable optical attenuator. We show that the introduced asymmetric refractive index profile of the wave-guide structure, combined with the optimal placement of the heating electrodes, leads to a significant increase of the dynamic range of the attenuator.
UR - http://www.scopus.com/inward/record.url?scp=0141569371&partnerID=8YFLogxK
U2 - 10.1007/s00340-003-1235-2
DO - 10.1007/s00340-003-1235-2
M3 - Article
SN - 0946-2171
VL - 77
SP - 19
EP - 23
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
IS - 1
ER -