Optical Fiber Position Sensor Using A Frequency Modulated Semiconductor Laser

Hajime Hattori; Takashi Takeo

doi:10.1117/12.942521

23 March 1988 Optical Fiber Position Sensor Using A Frequency Modulated Semiconductor Laser

Hajime Hattori, Takashi Takeo

Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942521
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

The method for measuring non-contactly the position of an object using an optical fiber and a frequency modulated semiconductor laser is proposed. This method uses the coherent FM heterodyne principle of the Michelson interferometer. The optical fiber gives the flexibility to the system. The maximum detection range was limited to several meters by the speckle effects to the diffuse targets and the dependence of the semiconductor laser.

Citation Download Citation

Hajime Hattori and Takashi Takeo "Optical Fiber Position Sensor Using A Frequency Modulated Semiconductor Laser", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); https://doi.org/10.1117/12.942521

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