標題: Compact optical curvature sensor with a flexible microdisk laser on a polymer substrate
作者: Shih, M. H.
Hsu, K. S.
Kunag, Wan
Yang, Y. C.
Wang, Y. C.
Tsai, S. K.
Liu, Y. C.
Chang, Z. C.
Wu, M. C.
光電工程學系
Department of Photonics
公開日期: 15-Sep-2009
摘要: We demonstrate a chip-scale compact optical curvature sensor. It consists of a low threshold InGaAsP microdisk laser on a flexible polydimethylsiloxane polymer substrate. The curvature dependence of lasing wavelength was characterized by bending the cavity at different bending radii. The measurements showed that the lasing wavelength decreases monotonously with an increasing bending curvature. A good agreement between experiment and three-dimensional finite-difference time-domain simulation was also obtained. The sensitivity of the compact device to the bending curvature is -23.7 nm/mm from the experiment. (C) 2009 Optical Society of America
URI: http://dx.doi.org/10.1364/OL.34.002733
http://hdl.handle.net/11536/6671
ISSN: 0146-9592
DOI: 10.1364/OL.34.002733
期刊: OPTICS LETTERS
Volume: 34
Issue: 18
起始頁: 2733
結束頁: 2735
Appears in Collections:Articles