کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1481249 | 1510461 | 2013 | 4 صفحه PDF | دانلود رایگان |
The feasibility of telluride based single-mode waveguides being able to guide light in the infrared region [1–16 μm] is demonstrated. The rib waveguides comprise a silicon substrate, two Te–Ge–Se films deposited by thermal co-evaporation. The first one plays the role of a cladding layer while the second is the core layer. In order to control the light confinement, the second layer is further etched by reactive ion etching in CHF3/O2/Ar atmosphere. The obtained structures behaved as channel waveguides with a single-mode transmission demonstrated at 1.55 μm. Transmission optical losses were evaluated by the cut-back method on the very first prototypes and were comprised between 0.6 and 1.8 dB cm− 1.
► The fabrication of single-mode channel waveguides based on TeGeSe films
► The TeGeSe films were deposited by thermal co-evaporation.
► The waveguides were made of a core and a cladding layer deposited onto silicon.
► The core layer was etched by reactive ion etching.
► The waveguides were characterized by propagation losses of 1.2 ± 0.6 dB cm− 1.
Journal: Journal of Non-Crystalline Solids - Volume 377, 1 October 2013, Pages 205–208