Kerr Comb-Driven Silicon Photonic Transmitter

Abstract

We demonstrate the first o n-chip silicon photonic transmitter u sing a Kerr frequency comb source for massive wavelength parallelism. The architecture is scalable to hundreds of wavelength channels, paving the way for multi-Tb/s photonic interconnects.

An Energy-Efficient and Bandwidth-Scalable DWDM Heterogeneous Silicon Photonics Integration Platform

“…More and more groups share and resonate the same vision with us and are developing different versions of frequency comb-powered, microring resonator-based DWDM direct detection TRx architectures, chips [119,120] and product [121][122][123]. Future work on fully functional TRx system integration including electronic driver integration and system-level control algorithm development brings new challenges and excitement as well.…”

Petabit-Scale Silicon Photonic Interconnects With Integrated Kerr Frequency Combs

“…Furthermore, each successive stage doubles the channel spacing and halves the number of channels per bus, relaxing constraints on crosstalk and insertion loss. However, since this architecture preserves the total comb bandwidth on each bus, if the comb bandwidth is greater than the resonator FSR then great care must be taken in constructing the channel arrangement such that device 'alias' resonances do not overlap with other 'target' resonances [22], [24].…”

“…We have successfully demonstrated error-free operation with a normal-GVD Kerr comb source and silicon photonic transmitter up to 16 Gb/s/λ for both single bus [23] and evenodd interleaved architectures [22], [24], with channel counts of 20 and 32, respectively. Furthermore, we have recently shown simultaneous modulation of adjacent comb lines at 200 GHz spacing on the same bus, achieving error-free operation for both channels with negligible crosstalk [97].…”

“…The miniaturization of these frequency combs to the chip scale has sparked a second revolution in the field, promising to provide unprecedented performance in a mass-producible form factor which can be realized using the same complementary metaloxide-semiconductor (CMOS) infrastructure currently used to fabricate commercial microelectronics chips [7]- [10]. Over the span of the past decade, these integrated Kerr frequency combs have found widespread use across a broad application space including optical metrology [11], optical frequency synthesis [12], quantum optics [13], spectroscopy [14], [15], long-haul telecommunications [16]- [21], and most recently short-reach data communications [22]- [26]. In the context of both longand short-reach data communications, integrated optical frequency combs have drawn significant interest as wavelengthdivision multiplexing (WDM) sources, providing the alluring prospect of a single multi-wavelength source with tens to hundreds of equally-spaced carrier frequencies at standard ITU channel spacing.…”

Pentavalent Manganese Luminescence: Designing Narrow-Band Near-Infrared Light-Emitting Diodes as Next-Generation Compact Light Sources

“…The IoT is underpinned by fast Internet, 1 with optical broadband telecommunications adopting Dense Wavelength-Division Multiplexing (DWDM) to meet fast Internet demands. 2,3 DWDM requires an optical fiber amplifier of increasing wavelength bands arranged in a narrow spacing to enable terabit per second data transfer. Given the low optical loss for infrared light in silicon fibers, the use of infrared light with a narrow bandwidth emission is hugely beneficial for optical broadband telecommunications.…”