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Ultracompact tapere...
Ultracompact tapered coupler for the Si/III-V heterogeneous integration
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Huang, Qiangsheng (författare)
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Cheng, Jianxin (författare)
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Liu, Liu (författare)
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Tang, Yongbo (författare)
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- He, Sailing (författare)
- KTH,Elektroteknisk teori och konstruktion,Zhejiang University, China
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Applied Optics. - 1559-128X .- 2155-3165. ; 54:14, s. 4327-4332
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- On-Chip
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