Add to ORKG[[abstract]]We present a modified end-fire coupling method to reconstruct two-dimensional index profiles of optical waveguides. The reconstruction is based on the measured differential optical fields and an inverse algorithm for the Helmholtz equation. The differential fields are obtained from spatially perturbed images recorded by a CCD camera. A closed-loop piezoelectric stage given a sinusoidal wave and an oil-immersion objective lens for high-resolution images are used in the measurement. A single-mode fiber and a Ti:LiNbO(3) waveguide with known index profile at 632.8nm are measured for demonstration. The measured index profiles agree quite well with core regions of known index profiles. (C) 2011 Optical Society of America[[note]]SC
We present a nondestructive experimental method to measure monotonically varying refractive-index pr...
In this work we present a new approach related to the profile reconstruction of graded-index wavegui...
End-fire mode spectroscopy technique provides reliable measurement of the whole mode spectrum of opt...
[[abstract]]We present a modified end-fire coupling method to reconstruct two-dimensional index prof...
[[abstract]]The evanescent tails of a guiding mode as well as its first and second derivatives were ...
Refractive-index profile reconstruction methods for optical slab (direct and inverse analysis method...
The refractive index distribution in the core-cladding region of an optical fiber plays an important...
A method is presented whereby the refractive index profile of a planar, surface, dielectric optical ...
A direct and nondestructive measurement technique for the determination of the refractive index prof...
With any waveguide device accurate knowledge of the optical characteristics is necessary for device ...
A nondestructive technique that provides near-field measurements as well as refractive index profile...
We propose a modified inverse regularization algorithm for computing the 2-D refractive index profil...
A fast and accurate magnified near-field (NF) measurement technique that employs a charge-coupled de...
Accurate semi-analytical technique is developed for reconstructing refractive index profiles of opti...
In this paper we present a critical analysis on the refractive index profile reconstruction from nea...
We present a nondestructive experimental method to measure monotonically varying refractive-index pr...
In this work we present a new approach related to the profile reconstruction of graded-index wavegui...
End-fire mode spectroscopy technique provides reliable measurement of the whole mode spectrum of opt...
[[abstract]]We present a modified end-fire coupling method to reconstruct two-dimensional index prof...
[[abstract]]The evanescent tails of a guiding mode as well as its first and second derivatives were ...
Refractive-index profile reconstruction methods for optical slab (direct and inverse analysis method...
The refractive index distribution in the core-cladding region of an optical fiber plays an important...
A method is presented whereby the refractive index profile of a planar, surface, dielectric optical ...
A direct and nondestructive measurement technique for the determination of the refractive index prof...
With any waveguide device accurate knowledge of the optical characteristics is necessary for device ...
A nondestructive technique that provides near-field measurements as well as refractive index profile...
We propose a modified inverse regularization algorithm for computing the 2-D refractive index profil...
A fast and accurate magnified near-field (NF) measurement technique that employs a charge-coupled de...
Accurate semi-analytical technique is developed for reconstructing refractive index profiles of opti...
In this paper we present a critical analysis on the refractive index profile reconstruction from nea...
We present a nondestructive experimental method to measure monotonically varying refractive-index pr...
In this work we present a new approach related to the profile reconstruction of graded-index wavegui...
End-fire mode spectroscopy technique provides reliable measurement of the whole mode spectrum of opt...