Changes in speckle patterns in an output light spot from an optical fiber to be caused by load application of small weight level

M Hasegawa, T Chiba… - … Sensor Systems and …, 2021 - spiedigitallibrary.org
For the purpose of utilizing changes in speckle patterns to be observed in an output light
spot from an optical fiber for sensing applications, certain load was applied onto an optical …

An experimental study on detection of load application onto an optical fiber by means of changes of a speckle pattern

M Hasegawa, M Kawahara - Advanced Sensor Systems and …, 2012 - spiedigitallibrary.org
For the purpose of investigating possibilities of utilizing changes of speckle patterns, to be
observed in an output light spot from an optical fiber, due to external disturbance for sensing …

A study on a detection system for load application onto an optical fiber by means of changes of a speckle pattern

M Kawahara, M Hasegawa - IEICE Technical Report; IEICE Tech. Rep …, 2012 - ken.ieice.org
(in English) In order to investigate possibility of utilizing speckle patterns to be observed in
an output light spot from an optical fiber due to external disturbance for sensing application …

A study on a detection system for load application onto an optical fiber by means of changes of a speckle pattern (II)

M Kawahara, M Hasegawa - IEICE Technical Report; IEICE Tech. Rep …, 2012 - ken.ieice.org
(in English) In order to investigate possibility of utilizing speckle patterns to be observed in
an output light spot from an optical fiber due to external disturbance for sensing application …

An experimental study on changes of speckle patterns caused by load application onto an optical fiber

M Kawahara, Y Takahashi, M Hasegawa - IEICE Technical Report; …, 2011 - ken.ieice.org
(in English) In order to investigate possibility of utilizing speckle patterns for sensing
application, a certain load was applied onto an optical fiber through which laser beams …

Detection of load application onto an optical fiber through changes in speckle patterns in an output light spot

M Hasegawa, R Takeda… - … Symposium on Advanced …, 2016 - spiedigitallibrary.org
For the purpose of investigating possibilities of utilizing, for sensing application, changes in
speckle patterns to be observed in an output light spot from an optical fiber due to external …

Changes in speckle patterns induced by load application onto an optical fiber and its detection through image processing

M Hasegawa, Y Shimizu… - … Symposium on Advanced …, 2014 - spiedigitallibrary.org
Speckle patterns observed in an output light spot from an optical fiber are likely to be
changed due to external disturbances applied to the fiber, and such changes can be utilized …

Preliminary investigations on changes in speckle patterns projected from a multimode optical fiber due to external disturbances to be applied onto the fiber

M Hasegawa - Optical Engineering, 2016 - spiedigitallibrary.org
Changes in speckle patterns due to certain external disturbances to be applied onto a
multimode optical fiber were observed. In the first attempt, a multimode optical glass fiber …

Changes in speckle patterns induced by load application onto an optical fiber and its possible application for sensing purpose

M Hasegawa, J Okumura… - … Conference on Optical …, 2015 - spiedigitallibrary.org
Speckle patterns to be observed in an output light spot from an optical fiber are known to be
changed due to external disturbances applied onto the optical fiber. In order to investigate …

Rotation phenomena of speckle patterns observed in an output light spot from an optical fiber and its applicability for sensing applications

M Hasegawa, Y Takahashi… - … Sensor Systems and …, 2012 - spiedigitallibrary.org
When coherent light beams, ie, laser beams, are incident on one end of an optical fiber and
transmitted to another end to exit from there so as to form an output light spot on a screen …