[20p-E215-1~6] 4.2 Photonics Devices, Photonic Integrated Circuit and Silicon Photonics

▲ [20p-E215-6] Random walk and toward lévy flight in waveguide lattice

〇(D)Sayan Bhattacherjee¹、Somnath Ghosh¹ (1.IIT Jodhpur)

キーワード：Disorder Photonics, Anomalous Localization, Random Laser

We report a very special kind of lattice where complex coupling has been done by doping the bulk with active material. The controlled deliberate disorder introduced to waveguides helps to arrest transverse spreading of light and in presence of adequate optical gain, lattice exhibits anomalous localization which is reported for the first time. This has also been confirmed by calculating the random walk motion of the photons. Activity in the direction of random lasing through these structures can be explored by anomalous localization and Lévy-type distribution in intensity fluctuations.