Title :
Effect of wavelength shift on PLC-type WDM directional coupler by UV irradiation
Author :
Han, Sang-Pil ; Park, Taesang ; Park, Soo-Jin ; Jeong, Ki-Tae
Author_Institution :
Interconnection Team, Electron. & Telecommun. Res. Inst., Taejeon, South Korea
Abstract :
The UV light of KrF excimer laser, which is used for making fiber gratings, is irradiated on PLC-type WDM directional couplers. After the irradiation, the shift of transmission wavelengths is observed as a function of UV exposure dose. The amount of the effective refractive index change of rectangular silica waveguides is calculated by the coupled mode theory and the measured data.
Keywords :
coupled mode analysis; integrated optoelectronics; optical communication equipment; optical directional couplers; refractive index; wavelength division multiplexing; KrF; KrF excimer laser; PLC-type WDM directional coupler; PLC-type WDM directional couplers; UV irradiation; coupled mode theory; effective refractive index change; fiber gratings; rectangular silica waveguides; transmission wavelength shift; wavelength shift; Directional couplers; Fiber gratings; Fiber lasers; Laser modes; Laser theory; Optical fiber couplers; Optical fiber theory; Refractive index; Waveguide lasers; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
