Related Experiment Videos
[Measurement of waveguide depth in proton-exchanged LiNbO3 by infrared absorption spectroscopy]
1College of Precision Instrument and Lab. of Opto-electronic Information Science and Technology, Ministry of Education of China, 300072 Tianjin.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 5, 2003
Abstract:
A novel method for determining proton-exchanged LiNbO3 waveguide depth by infrared absorption spectroscopy was proposed. The method overcomes the shortcoming that the conventional prism-coupling + IWKB technique is only applicable to the multimode waveguides. For the commonly used single-mode waveguides, however, it is helpless. The experimental results indicated that this method has good accuracy.