Photonics Research, 2019, 7 (9): 09001036, Published Online: Aug. 13, 2019  

Apodized silicon photonic grating couplers for mode-order conversion Download: 683次

Author Affiliations
Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK
Abstract
An out-of-plane silicon grating coupler capable of mode-order conversion at the chip–fiber interface is designed and fabricated. Optimization of the structure is performed through finite-difference time-domain simulations, and the final device is characterized through far-field profile and transmission measurements. A coupling loss of 3.1 dB to a commercial two-mode fiber is measured for a single TE0LP11 mode conversion grating, which includes a conversion penalty of 1.3 dB. Far-field patterns of the excited LP11 mode profile are also reported.

Iosif Demirtzioglou, Cosimo Lacava, Abdul Shakoor, Ali Khokhar, Yongmin Jung, David J. Thomson, Periklis Petropoulos. Apodized silicon photonic grating couplers for mode-order conversion[J]. Photonics Research, 2019, 7(9): 09001036.

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