Multi-wavelength photonic band gaps based on quasi-periodically poled lithium niobate ordered in Fib

• 作 者: 周琢尔 石剑虹 陈险峰
• 机 构: Department of Physics,The State Key Laboratory on Fiber-Optic Local Area Network and Advanced Optica
• 出 处: Chinese Optics Letters
• 发表日期: 2009年06期
• 关键词: Fibonacci photonic lithium periodically blocks ordered quasi tuned directional s

We demonstrate a quasi-periodic structure exhibiting multiple photonic band gaps (PBGs) based on submicron-period poled lithium niobate (LN).The structure consists of two building blocks,each containing a pair of antiparallel poled domains,arranged as a Fibonacci sequence.The gap wavelengths are analyzed with the Fibonacci sequence parameters such as the quasiperiodic indices and the average lattice parameter.The transmission properties are investigated by a traditional 4×4 matrix method.It has also been proved that the gap depth can be tuned by the lengths of poled domains.

We demonstrate a quasi-periodic structure exhibiting multiple photonic band gaps (PBGs) based on submicron-period poled lithium niobate (LN). The structure consists of two building blocks, each containing a pair of antiparallel poled domains, arranged as a Fibonacci sequence. The maximum of the gaplengths of the Fibonacci sequence parameters such as the quasiperiodic indices and the average lattice parameter.The transmission properties are investigated by a traditional 4 × 4 matrix method. It has also been proved that the gap depth can be tuned by the lengths of poled domains.