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Silica-Based Arrayed Waveguide Grating with Flattened Spectral Response Using a Multimode Interference Coupler |
| TANG Yan-Zhe1;JIA Ke-Miao1;LI Bai-Yang1;YANG Jian-Yi1;JIANG Xiao-Qing1;WU Ya-Ming2;WANG Yue-Lin1,2 |
| 1Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027
2State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 |
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| Cite this article: |
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TANG Yan-Zhe, JIA Ke-Miao, LI Bai-Yang et al 2004 Chin. Phys. Lett. 21 1064-1066 |
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Abstract We designed and fabricated an arrayed waveguide grating based on silica-on-silicon materials with flattened spectral response by adding a multimode interference coupler in the input region. The theoretical analysis and calculation are given. The device has worked effectively and has been tested with the passband 0.43 nm at 1 dB, 0.72 nm at 3 dB and 1.56 nm at 20 dB respectively, at a cost of power penalty of about 1.5 dB. The crosstalk is less than -30 dB, owing to the high-resolution photomask and well-controlled fabrication processes.
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| Keywords:
42.25.-p
42.30.Rx
42.30.Wb
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Published: 01 June 2004
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