Fourier-Transform-Limited Performance of a Lithographically Scribed Planar Holographic Bragg Reflector
| Autor: | D. Iazikov, Christoph M. Greiner, T.W. Mossberg |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Materials science
business.industry Holography Physics::Optics Distributed Bragg reflector Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention symbols.namesake Fourier transform Optics Planar Fiber Bragg grating law symbols Optoelectronics Electrical and Electronic Engineering business Lithography Waveguide Refractive index |
| Zdroj: | IEEE Photonics Technology Letters. 16:840-842 |
| ISSN: | 1041-1135 |
| DOI: | 10.1109/lpt.2004.823700 |
| Popis: | Planar holographic Bragg reflectors (HBRs) are computer-generated two-dimensional (2-D) slab-waveguide-based refractive-index gratings. HBRs provide the spectral filtering function of fiber Bragg gratings but-enabled by the 2-D slab waveguide geometry-add the capability to spatially route signals. Here, we report on a silica-on-silicon-based focusing HBR providing 17 GHz, essentially Fourier-transform-limited, spectral resolution. This result comprises the first time deep ultraviolet projection lithography is successfully applied to the fabrication of a 2-D Bragg reflector on the centimeter scale. The 2-D Bragg filter occupies a compact 0.3 cm/sup 2/ footprint and provides diffraction-limited spatial input-output beam mapping. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|