An analytical approach to modify coupling length of the directional coupler using external triggering technique

Dr. Puspendu Kuila

Volume : V, Issue : VII, July - 2016

An analytical approach to modify coupling length of the directional coupler using external triggering technique

Dr. Puspendu Kuila

Abstract :

Evanescent wave coupling techniques are massively used in photonics technology. The strength of interaction between two wave guides in a directional coupler depends upon the wave guides parameters, the separation between the wave guides, the wave length of operation and also the length of the coupling region. The energy exchange between the wave guide of the coupler is directly depend on the interaction strength. Here a technique is proposed to modify the coupling length of a coupler so that a particular interaction may happen. For this purpose external electric field of specified value is applied to obtain required coupling length