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Design and fabrication of compact 3-dB coupler in silicon-on-insulator

✍ Scribed by Lin ZhiLang; Cheng XinLi; Wang YongJin; Cao GongBai; Jia XiaoLin; Zhang Feng


Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
309 KB
Volume
240
Category
Article
ISSN
0030-4018

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✦ Synopsis


A novel compact 3-dB coupler is proposed and fabricated in silicon-on-insulator. The new coupler provides large output waveguide spacing of 125.0 lm with short device length of 867.0 lm and large cross-section of 6.0 β€’ 4.0 lm. The device length can be remained essentially unchanged even when the output spacing is further enlarged to realize the complex applications in photonic integrated circuits. The fabricated device exhibits excess loss of 6.3 dB and low imbalance of 0.26 dB.


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