Acta Metallurgica Sinica(English letters) ›› 2008, Vol. 15 ›› Issue (4): 91-94.doi:

• Wireless • Previous Articles     Next Articles

Analysis of S-SEED’s characteristics in optical switch

CAO Yong-sheng, YIN Xiao-li, XIN Xiang-jun, YU Chong-xiu   

  1. Key Laboratory of Optical Communication and Lightwave Technologies, Beijing University of Posts and Telecommunications,
    Ministry of Education, Beijing 100876, China
  • Received:2008-06-10 Revised:1900-01-01 Online:2008-12-30
  • Contact: CAO Yong-sheng

Abstract:

This article introduces the basic structure of a symmetric self-electrooptic effect device (S-SEED), and applies the Kirchoff’s current law and a purely equivalent capacitive model, to analyze S-SEED’s switch characteristics. Linear approximation and N-segment approximation are utilized to obtain S-SEED’s voltage-time (V-T) and characteristics. Theoretical analysis is verified by simulations, and the results demonstrate that the precision of S-SEED’s switch time can satisfy the requirement in applications with linear approximation. Moreover, the simulations compare S-SEED’s switch characteristics with different input powers and input contrast ratios, which reveal that increasing input contrast ratio is an effective way to improve S-SEED’s switch characteristics.

Key words:

symmetry S-SEED;optical switch;V-T characteristics;characteristic simulations