The use of push-pull probe can lower the demand of laser linewidth in optical fiber sensors, so we can use normal laser in optical fiber sensors and spread practicability of the system.

而采用推挽式探头设计结构，由于两臂等长可以降低传感器对激光器线宽的要求，采用普通的激光光源就可以满足要求，拓展了系统的实用性。

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Done correctly, Chicago could leverage city assets and encourage private fiber networks to spread to all businesses and more neighborhoods.

FORBES: How To Build The Most Connected City In The World

The satellite and fiber-optic communication network, which has so far spread to 12 countries on the continent, is designed to provide connectivity between Indian institutions and 54 African countries, as well as facilitating easy video-conferencing among heads of states across Africa.

CNN: India bids to be Africa's 'new best friend'