3-D Printing Optical Fiber

Molly Moser X Researchers used 3-D printing to make preforms for a step-index fiber (a) and a structured preform (b). These preforms were then placed in a draw tower (right) to make the final optical fiber. [Image: John Canning, University of Technology Sydney] The entire global telecommunications network, not to mention the ever-expanding Internet-of-Things (IOT), is tied together with string—silica optical fiber. Manufacturing this crucial connector is a laborious process, one that a research team in Australia believes it may have re-invented. Researchers at the University of Technology Sydney and the University of New South Wales have demonstrated a way to 3-D print a glass preform for fabricating glass optical fiber (Opt. Lett., doi: 10.1364/OL.44.005358). This method, according to the team, simplifies fiber production as well as enabling both novel fiber designs and applications. The art of drawing fiber Silica optical fiber has a multitude of applications, but it’s expensive and labor-intensive to make. It comprises two parts: the fiber core that carries light, and the cladding that traps the light in the core as it travels through the fiber. In order to minimize loss and keep the light trapped in the core, the fiber core must have a higher refractive index than the fiber cladding. Conventional methods of constructing the preform through which optical fiber can be drawn require spinning a hollow tube of glass with a carefully controlled refractive index profile on a lathe over a heat source. It’s essential that the fiber geometry is precisely centered during this process. 3-D printing the preform instead is thus a very attractive alternative—one that several members of the Australian team have been working toward for a while. Several years ago, the team successfully demonstrated the first fiber drawn from a 3-D-printed polymer preform. Applying this additive-manufacturing technique to glass, however, presents a tricky manufacturing challenge, as 3-D printing glass requires temperatures of more than 1900 °C. Researchers shone green light through the final optical fiber and measured loss. The orange inset shows a fiber cross-section. [Image: John Canning, University of Technology Sydney] Printing glass To apply the approach to glass, the team behind the latest study added silica nanoparticles into the photo-curable resin. The researchers then used direct-light projection (DLP) to 3-D print the cladding preform with UV light at 385 nm, and poured a clever mixture of polymer and silica nanoparticles—this time doped with germanosilicate—into the hollow, cylindrical preform. The addition of the germanosilicate to the core resin upped the refractive index. To overcome the heat quandary, the researchers applied a thermal debinding process. The debinding sloughs off the polymer and other impurities, leaving the silica nanoparticles behind, which are held together by intermolecular forces. Kicking up the heat even more, the researchers then fused the nanoparticles into a solid structure that could be inserted into a draw tower to be molded into the optical fiber. According to the team, the end result was the first silica fibers drawn from 3-D-printed preforms. Scattering and next steps To test the quality of the first-of-its-kind fiber, the researchers shone 532-nm green light through 2 meters of both single-mode and multimode fiber—and measured significant loss. But while the team concedes that there is “considerable scope to improve the transmission properties of this fiber,” the researchers also believe that the relative ease with which the fiber was created could make the technique a game changer for future fiber fabrication. In particular, the team suspects that this new method could enable the production of incredibly complex multicore and multi-shaped fiber designs for previously unrealizable applications. According to a press release accompanying the work, the researchers are interested in partnering with a fiber manufacturer to improve and eventually commercialize the technology.

Ethernet/data connection

Ethernet/data connection

Release time:

2022-12-20 10:39

Ethernet/data connection
· Communication network cabinet

G/MPX-P05-KB  110 jumper frame  G/MPX-P05-G  G/MPX-WM64**


·  19″ standard installation; high-quality electrolytic steel plate, electrostatic spraying on the surface, good overall rigidity, coordinated colors, and elegant appearance.
There  are various specifications and combinations: height: 6U-56U; width: 600mm, 800mm series; depth: 450mm, 600mm , 800mm, 900mm, 1000mm series There are various configurations to choose
from  : 110 jumper racks, six types of distribution frames, AC and DC power distribution modules, power sockets, etc., cooling fan bearing plates, cable management racks, fiber optic units, etc.


· Ethernet wiring products

·  Category 5e
·  110 jumper (Cat.5e & Cat.6)

· ETSI standard wiring board

FTR-P04B(C) FTR-P05(A) and STR-P05 FTR-P06 FTR-P10 MFTR-P03 MFTR-P04 MFTR-P06A FSR-P04 FSR-P05(A) FSR-P06 FSR-P09


·  Modular design meets current requirements and future expansion requirements 
·  Effective radius of curvature control 
·  Splicing/wiring/fiber storage, while providing optical splitters to achieve optical power distribution 
·  Applied to 19' (48.26 cm) rack or The box installation method is applied to 23' rack installation by adjusting the position of the side ears 
It is suitable for various types of unit boxes with different capacities

· 19''75Ω digital wiring unit

19SMDY-P04 19FSDY-P01H 19FSDY-P01L


·  19″ flush installation, suitable for 19″ network cabinets
·  Optional L9, C6 series gold-plated 75Ω coaxial connectors, low contact resistance, reliable plugging and unplugging 
·  There is sufficient space for wiring and wiring in the rack. Each digital unit body has a wire passing device, which makes the wiring clear and tidy, and is easy to maintain 
. The  unit body can be turned down 90° or 180°, which is easy to terminate the cable


· AC/DC power distribution module

PD04 ,PD05 Type Power Distribution Unit


·  Boye AC/DC power distribution module provides stable power distribution and protection functions for various power devices in the network, and the products have been tested to meet UL standards. The air switch can be set according to customer requirements to meet the needs of each network device. In each power distribution module, air switch flow can be freely combined. The flow rate and the number of branches are configured according to user requirements, the maximum flow of a single channel is ≤125A; the number of branches is ≤18.
Suitable for 19 '  (48.3 cm) or 23' (58.4 cm) WECO and EIA rack mounts