Title :
Performance Analysis of Directional Coupler Switches in the Presence of Noise from the Loss-Compensating Amplifiers
Author :
Shankar, Rathy ; Hall, Trevor J.
Author_Institution :
Sch. of Inf. Technol. & Eng., Centre for Res. in Photonics, Ottawa, Ont.
Abstract :
The performance of directional coupler (DC) based switches due to crosstalk in the presence of noise from the loss-compensating amplifier is analyzed using numerical calculations. It is shown that, by choosing an optimal decision threshold for a given amplified spontaneous noise (ASE) level and extinction ratio, the tolerance to switch element crosstalk levels can be greatly improved. Noise level improvement through distributed amplification for a given loss, further enhances the tolerance to element crosstalk levels at reduced receiver loss
Keywords :
optical crosstalk; optical directional couplers; optical noise; optical switches; ASE; amplified spontaneous noise; crosstalk; directional coupler switches; loss-compensating amplifiers; performance analysis; Crosstalk; Directional couplers; Extinction ratio; Noise level; Optical interferometry; Optical losses; Optical noise; Optical switches; Performance analysis; Signal to noise ratio; ASE noise; DC switches; crosstalk; decision threshold; interferometric noise;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277569
