Two-dimensional velocity measurements With self-mixing technique in diode-pumped Yb:Er glass laser

Author

Kervevan, Luc ; Gilles, Hervé ; Girard, Sylvain ; Laroche, Mathieu

Author_Institution

Centre Interdisciplinaire de Recherche Ions Lasers, Caen, France

Volume

16

Issue

7

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

1709

Lastpage

1711

Abstract

Self-mixing laser Doppler velocimeter based on a two beam geometry scheme is investigated using a single-frequency Yb:Er-doped phosphate glass laser. The geometry allows the observation of a beat mode with optical crosstalk between the two optical paths, giving two major improvements: 1) a precise positioning of the optical head compared to the scattering target; 2) the measurement of both the absolute value of the velocity and the orientation of the speed.

Keywords

erbium; laser frequency stability; laser velocimeters; laser velocimetry; optical crosstalk; optical feedback; optical pumping; optical sensors; solid lasers; velocity measurement; ytterbium; Doppler velocimeter; Yb:Er phosphate glass laser; beat mode; optical crosstalk; optical pumping; self-mixing; single frequency glass laser; velocity measurements; Diodes; Glass; Laser modes; Microchip lasers; Optical feedback; Optical sensors; Solid lasers; Surface emitting lasers; Velocity measurement; Vertical cavity surface emitting lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.828830

Filename

1308273