Special Optical Fiber

New Dimension of Optical Fiber Communication

Special optical fiber is an optical fiber with special functions or special design, used in specific application fields.
Compared with traditional communication optical fibers, special optical fibers have higher performance and wider uses.

At the upcoming OFC 2024 exhibition in the United States, we will display the special optical fiber series.
You are also welcome to come to booth 5016 to have technical exchanges with us.

There are many types of specialty optical fibers, including but not limited to:

Fiber Optic Sensor

High power fiber laser

Nonlinear fiber

optical fiber amplifier

These optical fibers have important application value in medical, military, aerospace, communications and other fields.

1.Multicore fiber amplifier

As a key component of spatial division multiplexing (SDM) communication systems,
multi-core fiber amplifiers are technically more difficult than traditional multi-channel
single-core fiber amplifiers and have attracted widespread attention.

In order to achieve balanced performance, high efficiency, miniaturization and cost-effectiveness of multi-core fiber amplifiers,
we propose an innovative three-layer cladding 13-core Er/Yb co-doped microstructured optical fiber (13CEYDMOF).

The design feature of this optical fiber is that its outer cladding has peanut-shaped air holes,
allowing a single multi-mode laser pump source to uniformly excite 13 cores in the inner cladding.
This design avoids damage or aging of the outer coating by the pump laser.

In addition, the design of the peanut-shaped air holes effectively increases the numerical aperture (NA) of the inner cladding,
while reducing the outer diameter of the optical fiber and enhancing the mechanical flexibility of the optical fiber.
In order to solve the coupling difficulties caused by pores, we adopted a combination technique to bidirectionally pump 13CEYDMOFA.

This design is expected to provide new solutions for the application of multi-core fiber amplifiers
in SDM communication systems, and also provides a new way for the miniaturization,
efficiency and low-cost of multi-core fiber amplifiers.

2.Space division multiplexing optical fiber

Space-Division Multiplexing (SDM) technology is a major innovation in the field of optical fiber communications.
By transmitting multiple independent optical signals in parallel in the same optical cable,
SDM technology significantly increases the capacity of fiber optic communication systems.

Compared with traditional time division multiplexing and wavelength division multiplexing technologies,
SDM technology takes advantage of the spatial dimension of optical fibers and achieves parallel optical signals
by placing multiple independent optical fiber cores in the optical cable or using specially designed multi-core optical fibers. transmission.

Application scenarios of space division multiplexing optical fiber:

1. High-speed data transmission

2. Large-capacity communication

3. Data center interconnection

In terms of high-speed data transmission, SDM optical fiber can increase the bandwidth and transmission speed
of optical fiber networks to meet the needs of applications such as high-definition video, big data, and cloud computing.

In terms of data center interconnection, SDM optical fiber can realize high-speed, low-latency connections
between data centers and improve the performance and reliability of data centers.

Signal energy co-transmission microstructured optical fiber

Signal energy co-transmission microstructured optical fiber is an optical fiber with a special microstructure design,
which can realize the co-transmission of signal light and strong laser or pump light in the same optical fiber.

This design enables the optical fiber not only to have efficient information transmission capabilities,
but also to amplify and enhance the signal light during the transmission process through the optimized
design of the structure, thus improving the performance of the entire optical fiber communication system.

Application scope:

laser processing

Laser cleaning, laser welding, laser etching, etc.

communication

Cellular 5G system

Island communications and other communications involving
photoelectric conversion

Mining

Mining, mine energy and signal transmission

Nuclear power industry

Lighting and signal transmission

With the continuous advancement of technology, the performance of Xineng co-transmission microstructured
optical fiber will be further improved, and its application in the fields of optical fiber communication and
energy transmission will also be more in-depth.

The emergence of this kind of optical fiber not only brings new opportunities to the optical fiber
communication industry, but also provides innovative solutions to energy transmission problems.