Ultrafast gain dynamics in 1.3 µm InAs/GaAs quantum-dot optical amplifiers: The effect of p doping
Ultrafast gain dynamics of the ground-state transition are measured in electrically pumped InAs/GaAs quantum-dot amplifiers emitting near 1.3 µm at room temperature. Gain recovery on ...
Ultrafast gain dynamics of the ground-state transition are measured in electrically pumped InAs/GaAs quantum-dot amplifiers emitting near 1.3 µm at room temperature. Gain recovery on ...
Control of Fano line shapes by means of photonic crystal structures in a dye-doped polymer
The emission of a two-dimensional organic photonic crystal structure is investigated. A photon emitted by a molecule in this structure can take two different coupled pathways. It can either be emitted...
The emission of a two-dimensional organic photonic crystal structure is investigated. A photon emitted by a molecule in this structure can take two different coupled pathways. It can either be emitted...
Nonlinear photonic crystal waveguide structures based on barium titanate thin films and their optical properties
Appl. Phys. Lett. 90, 201104 (2007); doi:10.1063/1.2739083
Published 14 May 2007
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Nonlinear photonic crystal waveguide structures were fabricated from barium titanate thin films using nanolithography. A cascaded Bragg reflector using a strip waveguide was designed and analyzed. Both simulation and experimental results show that there is sufficient refractive index contrast to form a stop band by only etching through the Si3N4 strip layer. The band gap of the Bragg reflector can be engineered through control of the Bragg spacing, thickness, and etching depth of the strip layer. The transmission spectrum of the Bragg reflector waveguide was measured over the spectral range of 1500–1580 nm. A 27 nm wide stop band was obtained for a millimeter long sample. The nonlinear photonic crystal waveguides are potentially suitable as tunable filters, optical switches, and ultrawide bandwidth modulators.
©2007 American Institute of Physics
| History: | Received 28 February 2007; accepted 21 April 2007; published 14 May 2007 |
| Permalink: |
http://link.aip.org/link/?APPLAB/90/201104/1 |
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KEYWORDS and PACS
nonlinear optics,
photonic crystals,
optical waveguides,
integrated optics,
barium compounds,
thin films,
optical films,
nanolithography,
mirrors,
optical design techniques,
refractive index,
photonic band gap,
etching,
optical switches,
optical modulation
- 42.82.Et
Optical waveguides, couplers, and arrays (integrated optics) - 42.70.Qs
Photonic bandgap materials - 42.15.Eq
Optical system design - 42.79.Bh
Optical lenses, prisms and mirrors - 42.79.Wc
Optical coatings - 42.65.Pc
Optical bistability, multistability, and switching, including local field effects - 42.79.Hp
Optical processors, correlators, and modulators - YEAR: 2007
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
AIP
REFERENCES (11)
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