TY - JOUR ID - 3931 TI - The Effects of Strained Multiple Quantum Well on the Chirped DFB-SOA All Optical Flip-Flop JO - International Journal of Nanoscience and Nanotechnology JA - IJNN LA - en SN - 1735-7004 AU - Jabbari, M. AU - Moravvej-Farshi, M. K. AU - Ghayour, R. AU - Zarifkar, A. AD - Department of Electrical Engineering, Marvdasht branch, Islamic Azad University, Marvdasht, I. R. Iran. AD - Advanced Device Simulation Lab, Electrical and Computer Engineering Department, Tarbiat Modares University, I. R. Iran AD - Electrical Engineering Department, Shiraz University, Shiraz, I. R. Iran AD - Iran Telecommunication Research Center, Tehran, I. R. Iran Y1 - 2011 PY - 2011 VL - 7 IS - 4 SP - 190 EP - 196 KW - All-Optical Flip-Flop KW - Distributed feedback semiconductor optical amplifier KW - Optical Bistability DO - N2 - In this paper, based on the coupled-mode and carrier rate equations, a dynamic model and numerical analysis of a multi quantum well (MQW) chirped distributed feedback semiconductor optical amplifier (DFB-SOA)  all-optical flip-flop is precisely derived. We have analyzed the effects of strains of QW and MQW and cross phase modulation (XPM) on the dynamic response, and rise and fall times of the DFB-SOA all optical flip flop. We have shown that strained MQW active region under an optimized condition into a DFB-SOA with chirped grating can improve the switching ON speed limitation in the abovementioned device, significantly while the fall time is increased. The values of the rise times for such an all optical flip-flop, are obtained in an optimized condition, areas tr=255ps. UR - https://www.ijnnonline.net/article_3931.html L1 - https://www.ijnnonline.net/article_3931_e7b25c70cd5ea34af11a3434dc199d5a.pdf ER -