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III-nitride-based waveguides for ultrafast all-optical signal processing at 1.55 μm
- Source :
- physica status solidi (a). 213:1269-1275
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- We present an overview of the recently developed III-nitride-based optical waveguides for application in ultrafast signal processing at telecom wavelengths. We focus on different active and passive optical devices for further implementation within all-optical integrated circuits. Optical waveguides based on GaN/AlN quantum dots have been demonstrated to act as saturable absorbers requiring ∼3 pJ of input pulse energy to reach +3 dB transmittance contrast for TM-polarized light. On the contrary, sputtered-InN-based devices show −3 dB transmittance contrast associated to two-photon absorption for input pulse energies of ∼1 pJ, making them suitable to act as highly-efficient reverse saturable absorbers. Finally, the passive optical nature of waveguides based on sputtered AlN at 1.55 μm makes them suitable for further connections between different III-nitride-based active devices.
- Subjects :
- Materials science
02 engineering and technology
Integrated circuit
01 natural sciences
law.invention
Optics
law
0103 physical sciences
Materials Chemistry
Transmittance
Electrical and Electronic Engineering
Absorption (electromagnetic radiation)
010302 applied physics
Signal processing
business.industry
Nonlinear optics
Surfaces and Interfaces
021001 nanoscience & nanotechnology
Condensed Matter Physics
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Wavelength
Quantum dot
Optoelectronics
0210 nano-technology
business
Ultrashort pulse
Subjects
Details
- ISSN :
- 18626300
- Volume :
- 213
- Database :
- OpenAIRE
- Journal :
- physica status solidi (a)
- Accession number :
- edsair.doi...........b8d4031d4ad13809b9765af8a0110c82