Page 45 - Market Analysis Report of Optical Communications Field in China & Global market 2024
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● Key Achievement 1: Ultra-Wideband Real-Time hollow-core fiber, wherein air serves as the guiding medium in
Transmission Across S+C+L Bands place of traditional silica glass, significantly reduces backward
Building on the existing C+L band system, the transmission Rayleigh scattering compared to solid-core fibers, thereby
capability has been further expanded to include the S band, enabling single-fiber bidirectional transmission at the same
achieving real-time transmission across the ultra-wide wavelength. Building on the previously established concept
wavelength range of 1465 nm to 1627 nm (S+C+L bands). of same-frequency, full-duplex transmission with hollow-
This expansion provides a transmission bandwidth of 19.65 core fiber, which was developed in collaboration with China
THz, increasing the available spectral capacity by 64%. With Mobile and the National Key Laboratory of Optical
a single-channel rate reaching the terabit level, the one-way Communication Systems and Networks (China Information
capacity exceeds 135 Tbps. and Communication Technology Group), this approach has
been extended to include the S-band. This advancement
● Key Achievement 2: Wide-Spectrum Wavelength effectively doubles the single-fiber transmission capacity,
Conversion achieving a total transmission capacity exceeding 270 Tbps.
The independently developed wide-spectrum wavelength
conversion equipment by FiberHome enables bidirectional FiberHome Technologies has consistently positioned
conversion between C-band and S-band optical signals, itself as a "national team" dedicated to self-reliance and
allowing real-time transmission in the S-band using C-band strength in the field of optical communications. With a firm
transceivers. This technology is transparent to modulation commitment to this domain, FiberHome remains focused on
formats and data rates, and features femtosecond-level innovation and continuously increases efforts in technological
response times. It provides a solution for real-time S-band collaborations. Looking ahead, FiberHome will persist in
transmission, especially when the S-band industrial chain is tackling challenges in areas such as system optimization and
not yet fully mature. high-speed optoelectronic devices, further advancing the
● Key Achievement 3: High-Capacity Single-Fiber "three ultra" capabilities of optic technologies. At the same
Bidirectional Transmission via Hollow-Core Fiber time, FiberHome will continue to engage in joint innovative
In conventional solid-core optical fibers, single-fiber research with partners from industry, academia, and research
bidirectional transmission at identicalwavelengths is institutions. Together, we aim to contribute to building a
challenged by signal degradation due to backward strong network-powered nation, strengthening the foundation
Rayleigh scattering caused by counter-propagating signals. of new digital infrastructure, and nurturing new quality
Consequently, wavelength separation is typically required productive forces, thus propelling the new journey toward a
for bidirectional transmission, thus limiting the enhancement digital China in the new era.
of single-fiber capacity. The implementation of anti-resonant
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