کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9785821 | 1512657 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel multimode interference devices for low index contrast materials systems featuring deeply etched air trenches
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel design of multimode interference (MMI) device is proposed for photonic integrated circuits fabricated in low index contrast materials. In this design, deeply etched air trenches are used to define the boundaries of the multimode section to achieve strong lateral confinement. This results in superior imaging quality and therefore lower loss and imbalance, which can only be achieved in strongly guiding MMIs. However, the access waveguides remain weakly guiding, which is essential for low loss fibre connection. We demonstrate the merit of the design in 1Â ÃÂ 4 MMI power splitters. By introducing air trenches, loss decreases from 0.45 to 0.053Â dB and imbalance decreases from 0.15 to 0.058Â dB for TE polarization. For TM polarization, loss decreases from 0.46 to 0.003Â dB and imbalance decreases from 0.16 to 0.067Â dB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 250, Issues 4â6, 15 June 2005, Pages 292-296
Journal: Optics Communications - Volume 250, Issues 4â6, 15 June 2005, Pages 292-296
نویسندگان
Christopher J. Kaalund, Zhe Jin,