Title :
Integrated Wavelength-Insensitive Differential Laser Doppler Velocimeter Using Planar Lightwave Circuit
Author :
Maru, Koichi ; Fujii, Yusaku
Author_Institution :
Dept. of Electron. Eng., Gunma Univ., Kiryu, Japan
Abstract :
In this paper, a design of an integrated wavelength-insensitive laser Doppler velocimeter (LDV) has been proposed using planar lightwave circuit (PLC). The proposed LDV uses arrayed waveguide gratings (AWGs) that can be fabricated using PLC technology. Its characteristics are simulated using a design model based on grating equations for AWGs. The simulation results indicate that wavelength-insensitive operation can be almost obtained by optimizing the design parameters of the proposed structure without assembly of bulk diffractive gratings or other optical elements.
Keywords :
Doppler measurement; arrayed waveguide gratings; integrated optics; laser velocimetry; optical design techniques; optical fabrication; optical planar waveguides; AWG fabrication; PLC technology; arrayed waveguide gratings; design model; grating equation; integrated wavelength-insensitive LDV; laser Doppler velocimeter; planar lightwave circuit; Integrated optics; laser Doppler velocimeter (LDV); optical planar waveguides; precision measurement; waveguide arrays; wavelength sensitivity;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2027214
