Abstract

Multiband coherent communication is being handled as a promising candidate to address the increasing demand for higher data rates and capacity. At the same time, coherent communication is expected to enter the data center domain in the near future. With coherent data links in both, data- and telecom, spanning multiple optical bands, novel approaches to coherent transceiver design and traffic engineering will become a necessity. In this work, we present a monolithically integrated silicon photonic coherent receiver for O- and C-band. The receiver features a 2 × 2 multi-mode interference coupler network as 90 $^\circ$ hybrid optimized for 1430 nm (E-band). The total power consumption is 460 mW at a footprint of approximately 6 mm $^{2}$ , and an opto-electrical bandwidth of 33 GHz. 64 GBd operation is demonstrated in O- and C-band, which is competitive to the state-of-the-art for silicon photonic coherent receiver in the C-band, and the highest symbol rate to date for O-band coherent communication.

Electrically packaged silicon-organic hybrid (SOH) I/Q-modulator for 64 GBd operation

Heiner Zwickel, Juned N. Kemal, Clemens Kieninger, Yasar Kutuvantavida, Jonas Rittershofer, Matthias Lauermann, Wolfgang Freude, Sebastian Randel, and Christian Koos
Opt. Express 26(26) 34580-34591 (2018)

Generation of 64 GBd 4ASK signals using a silicon-organic hybrid modulator at 80°C

M. Lauermann, S. Wolf, W. Hartmann, R. Palmer, Y. Kutuvantavida, H. Zwickel, A. Bielik, L. Altenhain, J. Lutz, R. Schmid, T. Wahlbrink, J. Bolten, A. L. Giesecke, W. Freude, and C. Koos
Opt. Express 24(9) 9389-9396 (2016)

Coherent modulation up to 100 GBd 16QAM using silicon-organic hybrid (SOH) devices

S. Wolf, H. Zwickel, C. Kieninger, M. Lauermann, W. Hartmann, Y. Kutuvantavida, W. Freude, S. Randel, and C. Koos
Opt. Express 26(1) 220-232 (2018)

Monolithic polarization diversity coherent receiver based on 120-degree optical hybrids on silicon

Po Dong, Chongjin Xie, and Lawrence L. Buhl
Opt. Express 22(2) 2119-2125 (2014)

Silicon photonic neuromorphic accelerator using integrated coherent transmit-receive optical sub-assemblies

Ying Zhu, Ming Luo, Xin Hua, Lu Xu, Ming Lei, Min Liu, Jia Liu, Ye Liu, Qiansheng Wang, Chao Yang, Daigao Chen, Lei Wang, and Xi Xiao
Optica 11(4) 583-594 (2024)