Title :
Low-Loss Silicon Strip-to-Slot Mode Converters
Author :
Palmer, R. ; Alloatti, L. ; Korn, D. ; Heni, Wolfgang ; Schindler, Philipp C. ; Bolten, Jens ; Karl, Maximilian ; Waldow, M. ; Wahlbrink, Thorsten ; Freude, W. ; Koos, C. ; Leuthold, Juerg
Author_Institution :
Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
We demonstrate compact highly efficient broadband strip-to-slot mode converters in silicon with record-low losses of 0.02 (±0.02) dB and negligible reflections between 1480 nm and 1580 nm. The new strip-to-slot transition is logarithmically tapered, which enables a compact design. The new logarithmic tapers are compared with more conventional linearly tapered converters.
Keywords :
convertors; elemental semiconductors; integrated optics; optical design techniques; optical fabrication; optical losses; optical waveguides; silicon; slot lines; strip lines; Si; logarithmic tapers; low loss; negligible reflections; silicon strip-to-slot mode converters; wavelength 1480 nm to 1580 nm; Couplings; Optical waveguides; Rails; Reflection; Silicon; Strips; Waveguide transitions; Photonic integrated circuits; optical waveguides;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2013.2239283
