Low-loss measurement in partially buried opticalwaveguideson glass with a plastic prism.
Surface and buried planar waveguides have been fabricated in glass microscope slides with purely thermal potassium and sodium ion-exchange techniques. We measured propagation loss as low as 0.08 dB/cm in the partially buried waveguides using an improved two-prism coupling method. The method includes a plastic prism and involves applying heat to soften the base of the outcoupling plastic prism so that the prism is temporarily in extremely close contact with the waveguide surface.
Zhou
Y
Y
Chin
M K
MK
Lai
K S
KS
Wong
C C
CC