Analysis of fiber-optic probes using graded-index fiber microlenses with non-ideal refractive index profiles

Dirk Lorenser; Xiaojie Yang; David D. Sampson

doi:10.1117/12.974907

17 October 2012 Analysis of fiber-optic probes using graded-index fiber microlenses with non-ideal refractive index profiles

Dirk Lorenser, Xiaojie Yang, David D. Sampson

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84211W (2012) https://doi.org/10.1117/12.974907
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

Fiber-optic probes for sensing and imaging applications often employ sections of graded-index (GRIN) fiber to re-focus the diverging light from the delivery fiber. Such GRIN fiber microlenses possess aberrations which can cause significant distortions of the focused output beam. Using a numerical beam propagation method, we analyze the output beams resulting from index profiles that exhibit a central dip or a deviation from the ideal parabolic shape. Our method is in good agreement with experimental data and it enables the accurate simulation of fiber probes for biomedical applications using non-ideal or custom-engineered GRIN fibers with arbitrary refractive index profiles.

Citation Download Citation

Dirk Lorenser, Xiaojie Yang, and David D. Sampson "Analysis of fiber-optic probes using graded-index fiber microlenses with non-ideal refractive index profiles", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211W (17 October 2012); https://doi.org/10.1117/12.974907

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