China Telecom procurement network released “China Telecom Zhejiang Company 2024 empty core fiber optic cable field test project pre-qualification announcement”, the first time the procurement of empty core fiber optic cable, length 95 skin length kilometers.
According to the announcement, this project was initiated by Zhejiang Telecom, which intends to purchase empty core fiber optic cable with a length of 95 skin-length kilometers, including 2 cores of empty core fiber, 132 cores of conventional G652D fiber, including fusion splicing services for the entire link of empty core fiber cores. Delivery time: 45 days from the date of the notice of award to the bidder's designated location.
In the past two years, the demand for traffic from emerging businesses represented by artificial intelligence has grown at a high rate, requiring ultra-large capacity optical transmission systems. Air core fiber has become one of the most concerned directions in the industry, and China Telecom and China Mobile have completed several pilot projects in recent years.
Empty-core optical fiber is the air as a transmission medium, using a specially designed cladding structure will be limited to energy transmission in the air, greatly reducing the impact of the fiber material characteristics of its performance, can be fundamentally avoided in the traditional quartz glass optical fiber intrinsic limitations of the problem.
Zhang Chengliang, president of China Academy of Telecommunications Research, has said in the meeting: hollow core fiber is a potentially disruptive innovation in the transmission medium. The minimum limit of loss of hollow core fiber is as low as 0.1dB/km or less, which can theoretically support full-band transmission. It also has low nonlinearity, low delay, low backscatter, low dispersion and high dispersion flatness, making it a potentially disruptive innovation in transmission media.
And at Microsoft's recent Ignite2024 conference, Microsoft CEO Satya Nadella declared that 15,000 kilometers of empty-core fiber are planned to be deployed in the next 24 months for AI big models and data center connectivity, expanding network capacity and arithmetic power.
