Photorefractive Correction of the Coupling Ratio of an Integrated Optical Directional X-Coupler on a Lithium Niobate Substrate

Photorefractive Correction of the Coupling Ratio of an Integrated Optical Directional X-Coupler on a Lithium Niobate Substrate

The possibility of correcting the power coupling ratio of an integrated optical directional X-coupler upon excitation of a local photorefractive response in the substrate material (LiNbO 3 ) has been analyzed. The X-coupler operation has been numerically simulated, and the regions of its maximum sen...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Technical physics letters 2019-03, Vol.45 (3), p.187-189
Hauptverfasser: Parfenov, M. V., Tronev, A. V., Il’ichev, I. V., Agruzov, P. M., Shamrai, A. V.
Format: Artikel
Sprache:eng
Schlagworte:
Classical and Continuum Physics
Computer simulation
COMPUTERIZED SIMULATION
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRECTIONS
Couplers
COUPLING
EXCITATION
EXPERIMENTAL DATA
LITHIUM COMPOUNDS
Lithium niobates
Mach-Zehnder interferometers
NIOBATES
Photorefraction
Photorefractivity
Physics
Physics and Astronomy
Potassium
Ratios
REFRACTION
Substrates
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The possibility of correcting the power coupling ratio of an integrated optical directional X-coupler upon excitation of a local photorefractive response in the substrate material (LiNbO 3 ) has been analyzed. The X-coupler operation has been numerically simulated, and the regions of its maximum sensitivity to photorefraction have been determined. The correspondence between the calculated and experimental data has been obtained. The maximum correction value of the coupling ratio is 1–2%. The photorefractive correction of the coupling ratio has been used to increase the extinction ratio of a Mach–Zehnder modulator to 47 dB.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785019030131