Design of a Noncoherent 100-Gb/s 3-m Dual-Band PAM-4 Dielectric Waveguide Link in 28-nm CMOS

被引：1

作者：

Dens, Kristof ^{[1
]}

Vaes, Joren ^{[1
]}

Bluemm, Christian ^{[2
]}

Guimaraes, Gabriel ^{[1
]}

Gungor, Berke ^{[1
]}

Xie, Changsong ^{[2
]}

Dyck, Alexander ^{[2
]}

Reynaert, Patrick ^{[1
]}

机构：

[1] Katholieke Univ Leuven, ESAT, MICAS, B-3000 Leuven, Belgium

[2] Huawei Technol Dusseldorf GmbH, D-80992 Munich, Germany

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2024年 / 59卷 / 05期

关键词：

Optical fiber dispersion; Optical fiber couplers; Optical fiber networks; Optical fiber polarization; Optical fiber devices; Bandwidth; Optical transmitters; CMOS; dielectric waveguide (DWG); diplexer; dual band; millimeter-wave (mm-Wave); polymer microwave fiber (PMF); rectifier; transceiver; wireline; MICROWAVE;

D O I：

10.1109/JSSC.2024.3355210

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work details the design of a plastic fiber link in 28-nm CMOS, operating in two adjacent bands centered on 117.5 and 152.5 GHz. Each band supports multilevel (PAM-4) intensity-modulated signaling, which can be detected noncoherently, obviating the need for carrier recovery and phase alignment. A rectification-based detector is proposed to support linear noncoherent demodulation. A manifold diplexer is designed on-chip to increase the level of integration. The dual-band link achieves data rates up to 100 Gb/s over a fiber length of 3 m at a power consumption of 574 mW and a bit error rate (BER) better than 2.2e-4, corresponding to the standardized KP4 forward error correction (FEC) threshold. With only the low-band (LB) circuitry active, the link reaches up to 50 Gb/s over a distance of 7 m at a degraded BER of 2.2e-3 and up to 10 Gb/s over 11 m at a BER of 1e-6, representing the highest reported data rates for these link lengths. An energy efficiency reaching as low as 0.8 pJ/bit/m is reported for the 7-m case.

引用

页码：1398 / 1408

页数：11