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Integrated Optical Modulator Based on Transition between Photonic Bands

delete2018-01-26
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OA
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A
Alperen Gövdeli
M
Murat Can Sarihan
U
Utku Karaca
S
Serdar Kocaman *
DOI:10.1038/s41598-018-20097-7delete
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Abstract

Abstract

En 中文
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 (Delta n = similar to 4) for pi-phase shift on the modulator. This approach reduces the phase shifter length to a few micrometers (similar to 5 mu m) 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.
Keywords:
SLOW-LIGHT
ON-CHIP
SILICON
SPEED
COMMUNICATION
CRYSTALS
COMPACT
ENERGY
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Journal

Scientific Reports cover
Scientific Reports
IF:
3.9
Papers:
27.4W
Citations:
83.5W

Organization

M
Middle East Technical University
Scholars:
7.4K
Papers: 6.7K
Citations: 6.3K