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- Huang, Qiangsheng (author)
Ultracompact tapered coupler for the Si/III-V heterogeneous integration
- Article/chapterEnglish2015
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- 2015
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- LIBRIS-ID:oai:DiVA.org:kth-169136
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169136URI
- https://doi.org/10.1364/AO.54.004327DOI
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- Language:English
- Summary in:English
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- QC 20150612
- An ultracompact tapered coupler, which is suitable for mode transformation between a 220 nm high silicon wire waveguide and a Si/III-V hybrid waveguide, is proposed for Si/III-V heterogeneous integration. The tapered coupler is composed of three sections. Since the tapered coupler avoids exciting the unwanted high-order modes in the III-V waveguide, the length of the tapered coupler can be dramatically shortened. In the proposed structure, the total length of the trisectional tapered coupler can be as short as 8 mu m with a fundamental mode-coupling efficiency of over 95% in a bandwidth of over 100 nm. The alignment tolerance of the proposed structure is also analyzed.
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- NATURVETENSKAP Fysik Annan fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
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- Cheng, Jianxin (author)
- Liu, Liu (author)
- Tang, Yongbo (author)
- He, SailingKTH,Elektroteknisk teori och konstruktion,Zhejiang University, China(Swepub:kth)u1tir6md (author)
- KTHElektroteknisk teori och konstruktion (creator_code:org_t)
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- In:Applied Optics54:14, s. 4327-43321559-128X2155-3165
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