Aleksander Opilski

Technology of ion exchange in glass and its application in waveguide planar sensors

The possibilities of producing waveguide structures in glass using the ion-exchange technique are discussed. The modeling of par- ticular sequences of the technological process with respect to planar and strip waveguide structures as well as refraction profile measurement re- sults for these waveguides are presented. An exemplary application of this technique in the construction of planar sensors is also presented.

Influence of the refractive profile of a waveguide on the sensitivity of a planar difference interferometer

The work presents the possibility to control the changes involving the difference of the propagation of waveguide modes TE0, TM0, TM1 by respective selection of technological parameters while producing the optics channel of the planar interferometer by ion-exchange technique in glass. The influence of the refractive profile of waveguide structure on the sensitivity of interferometer was observed.

Mode beat measurement of planar optical waveguide using the immersion coupler

The present work offers a new method for the direct measurement of the propagation constants difference (Delta) (beta) of orthogonal modes (mode beat) of the same order in planar waveguides. The work also presents the method to determine the difference of propagation constants (mode beat) for different refractive indexes of the cover.

Integrated optical difference interferometer

The present paper discusses theoretical and experimental research on the planar difference interferometer produced with the use of planar technique on a glass substrate plate (planar interferometers) in view of its application in the system of phase-polarization sensors of basic physical quantities.

Spectral properties of bromophenol blue used as sensor layer of ammonia vapors

The paper presents the structure of measuring stands to be applied to carry out spectral measurements of sensor layers sensitive to the presence of ammonia vapors in the atmosphere around. Also the structure of a model of the waveguide sensor for the detection of ammonia vapors has been presented, as well as the measurement results involving such a sensor.

Single-polarization difference interferometer

The work presents the interference of modes which have the same polarization states with respect to two successive orders (TE0, TE1) in the planar waveguide obtained with the use of the ion exchange technique K+- Na+ in the base plate made of glass BK-7. The changes of the refractive index of the waveguide cover result in the changes of phase differences between the guided modes, which in turn brings about a different distribution of light intensity at the end of the waveguide.

Integrated optical Mach-Zehnder interferometer: technology, structure, functioning

The paper presents the technology of obtaining planar symmetrical Mach-Zehnder interferometer basing on K+ - Na+ ion exchange in glass. The influence of technogoical process parameters and interferometer geometry on the optical characteristics has been examined.

Fringe pattern field analysis in planar waveguides investigation

In the paper an analysis of a fringe pattern field with an observation of a chosen fringe course, for defining the profile of refractive index of planar waveguides are proposed. With an application of the measuring method described, refractive profiles of planar waveguides, produced in the soda-lime glass by means of an ion exchange Ag+

Substrate glasses used for the elements of integrated optics produced using ion exchange methods

ARLR Na+ were examined.

Attenuation of planar waveguides in selected types of glass

The work presents the results of research work on some types of glass in view of their application as material for the production of waveguide structures using the technique of ion exchange Na+--Ag+ and Na+-- K+. In the testing, maximum changes of the refractive index of the glass (Delta) n, caused by the introduction of admixtures in the diffusion and electrodiffusion processes, were determined, as well as diffusion constants and mobility ratios of the exchanged ions.