Enhancement of refractive index sensitivity of the in-line Mach-Zehnder interferometer through bending

Clenilson R. da Silveira; J. W. A. Costa; M. T. R. Giraldi; Marcos A. R. Franco; P. A. S. Jorge

doi:10.1117/12.2028226

18 November 2013 Enhancement of refractive index sensitivity of the in-line Mach-Zehnder interferometer through bending

Clenilson R. da Silveira, J. W. A. Costa, M. T. R. Giraldi, Marcos A. R. Franco, P. A. S. Jorge

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 8785FM (2013) https://doi.org/10.1117/12.2028226
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

This work presents numerical results related to an in-line Mach-Zehnder interferometer used as a refractive index sensor. The in-line Mach-Zehnder is based on abrupt tapers in standard single mode optical fiber. Numerical simulations were carried out using commercial software based on Beam Propagation Method in order to analyze the sensitivity response in terms of wavelength shift when this sensor is bent at certain radii of curvature. We realized that application of bending in the In-line Mach-Zehnder interferometer enhanced considerably the sensitivity of this sensor to the external refractive index. The best result was achieved for a radius of curvature of 10 mm (~500 nm/RIU for the refractive index range of 1.33 to 1.41) improving the sensitivity about eight times in comparison with the case with no bent.

Citation Download Citation

Clenilson R. da Silveira, J. W. A. Costa, M. T. R. Giraldi, Marcos A. R. Franco, and P. A. S. Jorge "Enhancement of refractive index sensitivity of the in-line Mach-Zehnder interferometer through bending", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785FM (18 November 2013); https://doi.org/10.1117/12.2028226

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available