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Proceedings Paper

Photonic time-wavelength pulse interleaver on silicon
Author(s): Yanping Li; Yan Li; Xiaoke Ruan; Fan Zhang; Zhangyuan Chen
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Paper Abstract

The time-wavelength optical pulse interleaver is an important component of a wavelength-interleaved photonic analog-to- digital converter (ADC). The two important performance indexes of interleavers are power imbalance and delay error. In order to reduce the power imbalance, a runway-shaped and shallow ridge silicon waveguide optical delay line (ODL) array is adopted. The measured average loss of the ODL is only 0.68 dB/cm. By measuring the delay of the ODL array, we optimize the ODL’s length to reduce the interleaver’s delay error. A four-channel interleaver with low loss and small delay error was fabricated on the silicon-on-insulator (SOI) platform, and the power imbalance is 0.9 dB. The root mean square (RMS) delay error is 0.34% and the crosstalk is below -20.3 dB.

Paper Details

Date Published: 12 March 2020
PDF: 9 pages
Proc. SPIE 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 114400F (12 March 2020); doi: 10.1117/12.2550036
Show Author Affiliations
Yanping Li, Peking Univ. (China)
Yan Li, Peking Univ. (China)
Xiaoke Ruan, Peking Univ. (China)
Fan Zhang, Peking Univ. (China)
Zhangyuan Chen, Peking Univ. (China)


Published in SPIE Proceedings Vol. 11440:
2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices
Baojun Li; Xingjun Wang; Ya Sha Yi, Editor(s)

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