Design of integrated scanning laser Doppler velocitmeter using arrayed waveguide gratings

An integrated scanned differential LDV has been proposed using planar lightwave circuit (PLC) technology. By using the proposed LDV, the measurement position can be scanned in depth direction without any mechanical movement. The PLC technology is utilized in the proposed design for achieving a compa...

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Bibliographic Details
Published in:Physics procedia 2009-07, Vol.2 (1), p.45-51
Main Authors: Maru, Koichi, Fujii, Yusaku, Obokata, Tomio, Ishima, Tsuneaki, Yupapin, Preecha, Pornsuwancharoen, Nithitroth, Juthanggoon, Thanaprasert
Format: Article
Language:English
Subjects:
Integrated optics
Laser Doppler velocimeter
Optical planar waveguides
Precision measurement
Waveguide arrays
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Summary:An integrated scanned differential LDV has been proposed using planar lightwave circuit (PLC) technology. By using the proposed LDV, the measurement position can be scanned in depth direction without any mechanical movement. The PLC technology is utilized in the proposed design for achieving a compact optical circuit. The characteristics of the proposed LDV are simulated with a design model based on grating equations for AWGs. The simulation result reveals that the measurement position can be changed over the range of 46 mm in the depth direction without mechanical movement when the displacement between output sides of two waveguide arrays is 30 mm.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2009.06.008