“…Tang, X. Wang, C.-T. Nguyen, B. Ye, and S. Lu are with the National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210023, China (e-mail: {tb, waxili, ncamtu, yebl, sanglu}@nju.edu.cn). FIFO queues [13]- [16], last in first out (LIFO) queues [15], [17], [18], priority queues [19]- [24], and shared queues [25], [26], etc. In this paper, we focus on the design of optical priority queues with SDLs.…”