25 Gb/s photoreceiver based on vertical-illumination type Ge-on-Si photodetector and CMOS amplifier circuit for optical interconnects

Jiho Joo; Ki-Seok Jang; Sanghoon Kim; In Gyoo Kim; Jin Hyuk Oh; Sun Ae Kim; Gyungock Kim; Gyu-Seob Jeong; Hankyu Chi; Deog-Kyoon Jeong

doi:10.1117/12.2077449

27 February 2015 25 Gb/s photoreceiver based on vertical-illumination type Ge-on-Si photodetector and CMOS amplifier circuit for optical interconnects

Jiho Joo, Ki-Seok Jang, Sanghoon Kim, In Gyoo Kim, Jin Hyuk Oh, Sun Ae Kim, Gyungock Kim, Gyu-Seob Jeong, Hankyu Chi, Deog-Kyoon Jeong

Author Affiliations +

Proceedings Volume 9367, Silicon Photonics X; 93670K (2015) https://doi.org/10.1117/12.2077449
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

We report the silicon photonic receivers based on the hybrid-integrated vertical-illumination-type germanium-on-silicon photodetector and CMOS amplifier circuit, for optical interconnects. The high-speed vertical-illumination-type Ge-on-Si photodetector is defined on a bulk-silicon wafer, and the CMOS amplifier chip was designed with 65nm ground rule. The PCB-packaged 4 channel 25 Gb/s photoreceiver exhibits a resposivity of 0.68A/W. The sensitivity measured at a BER of 10⁻¹²is -8.3 dBm and -2.4dBm for 25Gb/s and 32Gb/s, respectively. The energy efficiency is 2.19 pJ/bit at 25 Gb/s. The single-channel butterfly-packaged photoreceiver exhibits the sensitivity of -11dBm for 25 Gb/s at a BER of 10^−12. The energy efficiency is 2.67 pJ/bit at 25 Gb/s.

Citation Download Citation

Jiho Joo, Ki-Seok Jang, Sanghoon Kim, In Gyoo Kim, Jin Hyuk Oh, Sun Ae Kim, Gyungock Kim, Gyu-Seob Jeong, Hankyu Chi, and Deog-Kyoon Jeong "25 Gb/s photoreceiver based on vertical-illumination type Ge-on-Si photodetector and CMOS amplifier circuit for optical interconnects", Proc. SPIE 9367, Silicon Photonics X, 93670K (27 February 2015); https://doi.org/10.1117/12.2077449

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