Optical properties of Er3+-doped tungsten tellurite glass waveguides by Ag+–Na+ ion-exchange

2007 ◽  
Vol 30 (4) ◽  
pp. 586-593 ◽  
Author(s):  
Shinichi Sakida ◽  
Tokuro Nanba ◽  
Yoshinari Miura
Keyword(s):  
Optical Properties ◽  
Ion Exchange ◽  
Tellurite Glass ◽  
Glass Waveguides

Buried-glass waveguides by ion exchange through ionic barrier

1991 ◽  
Author(s):  
Ming-Jun Li ◽  
Seppo Honkanen ◽  
Wei-Jian Wang ◽  
S. Iraj Najafi ◽  
Ari Tervonen ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Glass Waveguides

The Application of ß“-Alumina As A Solid State Laser Host

1985 ◽  
Vol 60 ◽  
Author(s):  
J. D. Barrie ◽  
D. L. Yang ◽  
B. Dunn ◽  
O. M. Stafsudd
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Ion Exchange ◽  
Exchange Process ◽  
Laser Action ◽  
Solid State Laser ◽  
Host Crystal ◽  
State Laser ◽  
Ion Exchange Process ◽  
Single Host

AbstractIon exchanged ß“-aluminas display a number of interesting optical properties which suggest that the material is well suited for application as a solid state laser host. Small platelets of Nd3+ Ion exchanged β“-alumina exhibit laser action with gain coefficients many times greater than YAG. The versatility of the ion exchange process enables one to form a wide variety of compounds with different active ions and concentrations, thereby allowing the study of many different effects within a single host crystal.

A General Analytical Solution for the Concentration Profiles of Ion-Exchanged Planar Waveguides

1991 ◽  
Vol 244 ◽  
Author(s):  
Xiaoming Li ◽  
Paul F. Johnson
Keyword(s):  
Ion Exchange ◽  
Analytical Solution ◽  
Boundary Conditions ◽  
Surface Concentration ◽  
Concentration Profiles ◽  
Concentration Boundary ◽  
Glass Waveguides ◽  
General Analytical Solution ◽  
Exchange Processes ◽  
One Step

ABSTRACTDuring the recent years, a great variety of ion-exchange processes, including one-step or two-step electric field assisted ion-exchange processes, have been developed to fabricate different kinds of passive planar glass waveguides, e.g., surface waveguides, which correspond to surface maximum concentration, or buried waveguides, which correspond to inside maximum concentration [1,2,3]. Theoretical calculation of ionic concentration distribution has been of interest since refractive index is generally a linear function of concentration. A general analytical solution to calculate both surface and buried concentration distributions from different ion-exchange processes, however, has not yet been presented. In addition, traditional ion-exchange has been carried out only with constant surface concentration boundary conditions. Little attention has been paid, either experimentally or theoretically, to ion-exchange processes with variable boundary conditions. In fact, the time-dependent surface concentration is experimentally observed for the ion-exchange of GRIN glass in molten salt bath [4]. Very recently, a novel one-step technique [5,6] involving electric field assisted ion-exchange of Na+ in glass by Ag+ from molten AgNO3 bath with decaying silver concentration has been developed to produce buried Ag+ concentration profiles in glass. As the accurate and reproducible processes are very important for fabricating ion-exchanged glass waveguides, theoretical modeling and analysis on the new process are needed.In this paper, the one-dimensional field-assisted linear diffusion equation has been analytically solved by Laplace transformation to theoretically calculate concentration profiles produced by field enhanced ion-exchange process with exponentially decaying surface concentration boundary conditions. The applications of the solution to a variety of ion-exchange processes with different boundary or processing conditions for optical waveguide fabrication have been discussed. The theoretical results prove that the solution is a general analytical solution which can be used to calculate either surface concentration profiles or buried concentration profiles.

Samarium Concentration and Optical Correlation of Tellurite Glass

2015 ◽  
Vol 1107 ◽  
pp. 443-448
Author(s):  
Sib Krishna Ghoshal ◽  
Azmirawahida Zainuddin ◽  
Ramli Arifin ◽  
M.R. Sahar ◽  
Md Supar Rohani ◽  
...  
Keyword(s):  
Optical Properties ◽  
Tellurite Glass ◽  
Urbach Energy ◽  
Photonic Devices ◽  
Rare Earth Ions ◽  
Indirect Transition ◽  
Absorption Bands ◽  
Quenching Effect ◽  
Quenching Method ◽  
Inorganic Glasses

Modifying the structural and optical properties of inorganic glasses via controlled doping of various rare earth ions by inhibiting the quenching effect is a challenging task. We report the influence of samarium (Sm3+) ions concentration on enhanced optical properties of tellurite glass. A series of glasses with composition (0.80-x)TeO2 + 0.10Li2O + 0.10 Na2O + xSm2O3, where 0.0<x <0.03 mol% are prepared using melt quenching method and optical characterizations are performed. The XRD spectra confirm the amorphous nature of the glass. The Urbach energy decreases and the optical gap for both direcet and indirect transitions increases with the increse of samerium contents. The UV-Vis spectra comprised of eight absorption bands and PL spectra reveal four prominet peaks corresponding to various transitions from the ground state to the excited states of Sm3+ ion. The optical response shows significant enhancement with increasing concentration of samerium ions. Our detail experimental analyses may be useful for the development of tellurite glass based photonic devices. Keywords: Tellurite Glass, Sm3+ ions, Urbach Energy, Direct and Indirect Transition.

Compositional and stress-optical effects in glass waveguides: Comparison between KNa and AgNa ion exchange

1990 ◽  
Vol 119 (2) ◽  
pp. 195-204 ◽  
Author(s):  
C. De Bernardi ◽  
S. Morasca ◽  
D. Scarano ◽  
A. Carnera ◽  
M. Morra
Keyword(s):  
Ion Exchange ◽  
Glass Waveguides ◽  
Optical Effects

Planar waveguides formed by Ag^+–Na^+ ion exchange in nonlinear optical glasses: diffusion and optical properties

2000 ◽  
Vol 39 (3) ◽  
pp. 435 ◽  
Author(s):  
Marc Martin ◽  
Jean J. Videau ◽  
Lionel Canioni ◽  
Frédéric Adamietz ◽  
Laurent Sarger ◽  
...  
Keyword(s):  
Optical Properties ◽  
Ion Exchange ◽  
Nonlinear Optical ◽  
Planar Waveguides ◽  
Optical Glasses
Sign in / Sign up

Export Citation Format

Share Document