Abstract
We have used transmission measurements to estimate the propagation loss of submicron channels denned in two-dimensional photonic crystals patterned into a Ga(Al)As waveguide. The measured propagation loss of the fundamental mode is indistinguishable from the material absorption, setting an upper limit of 50 cm-1 (2 dB per 100 μm). We also find that, provided the etching is deep enough, propagation losses of these photonic crystal waveguides are lower than those of ridge waveguides etched in the same run.
Original language | English |
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Pages (from-to) | 2813-2815 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 77 |
Issue number | 18 |
DOIs | |
Publication status | Published - 30 Oct 2000 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)