Integrated Optical Modulator Based on Transition between Photonic Bands.

ABSTRACT: An area efficient novel optical modulator with low operation voltage is designed based on integrated Mach-Zehnder Interferometer with a photonic crystal slab structure as the phase shifter. Plasma dispersion effect is utilized so that photonic band-to-band transition occurs at the operating frequency leading to a high index change (?n?=?~4) for ?-phase shift on the modulator. This approach reduces the phase shifter length to a few micrometers (~5?µm) in a silicon on insulator platform and operating voltage required is around 1?V. Low voltage together with short optical interaction length decrease optical losses and power consumption during modulation process providing a great opportunity for size and system cost optimization.

SUBMITTER: Govdeli A 

PROVIDER: S-EPMC5786106 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature