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Conferences > CLEO_FS > 2023 > JTu2A > JTu2A.58

On-Chip Optical Power Monitoring of GaN-on-Si LEDs

Yao-Tsu Chang, Yu-Chia Chang, and Pinghui S. Yeh

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Abstract

The reliability of GaN-on-Si LEDs is of concern. A p-i-n photodiode loop surrounding the LED was fabricated to monitor the LED output power by detecting some of the downward emitting light propagating through the n-GaN layer. The monitoring responsivities were approximately 52 and 66 mA/W at biases of 0 and -3 V, respectively.

© 2023 The Author(s)

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