An all-optical wavelength reuse technique employing cost effective power efficient vertical surface emitting laser(VCSEL) is proposed to address uplink data streaming from end-users by exploiting the same wavelength a...
Short-reach optical interconnects among massive serves in data centers have attracted extensive research recently. Increasing capacity, cost and power efficiency as well as wavelength switching between data center net...
supported by the National Research Foundation of South Africa,Department of Science and Technology South Africa,Square Kilometre Array South Africa,Telkom,Cisco
To improve the time and frequency reference standards used for radio astronomy and high precision atomic physics applications, we describe a novel stable frequency transmission technique. The approach uses a vertical-...
Accurate time transfer and synchronization between different network nodes is a key functional requirement in digital communication. Developments in optical fiber-based frequency dissemination techniques have improved...
This paper experimentally demonstrates a low-cost energy efficient alternative technique for long reach transfer of accurate reference frequency(RF) clock signals for extended reach RF distribution systems.This is ach...
In this paper, we propose and experimentally demonstrate a vertical cavity surface emitting laser(VCSEL)-based simultaneous 45.2 Gbit/s(2×22.6 Gbit/s) 4-PAM data and 8 GHz(2×4 GHz) phase modulated reference frequenc...
We experimentally demonstrate the multiple signal modulation on a single class 10 G vertical cavity surface emitting laser(VCSEL) carrier at 1 310 nm for next generation multicast-enabled data center networks. A 10 Gb...
In this paper, a novel vertical cavity surface emitting laser(VCSEL) polarization modulation technique based on polarization switching due to thermal heating in a single transverse mode class 10 G VCSEL at 1 310 nm is...
supported by the National Natural Science Foundation of China(No.61505142);the Tianjin Natural Science Foundation(No.16JCQNJC02100)
The prediction method of dynamic wavelength is proposed for temperature tuning process. The temperature of the thermistor integrated in laser diode(LD) module is recorded to predict the LD chip temperature. Then accor...