What does the parameter 14AWG in coaxial cable mean?

14AWG means the wire diameter is 1.63mm and the cross-sectional area is 2.075mm².

Commonly used are even wire gauges, such as 16AWG, 18AWG, and 20AWG wire gauges.

Formula = 3.14*(single diameter/2)*(single diameter/2)*total number of roots.

The final calculated result is 2.08 square millimeters.

The development status of AWG:

Arrayed waveguide grating (AWG) is a rapidly developing DWDM

key components of the network. In 1988, Smit of Delft University in the Netherlands first proposed AWG

the concept of. Its important application value has attracted the attention of institutions such as NTT Company and Bell Labs.

After more than ten years of research and development, a variety of different AWG devices have been developed and started to be used in DWDM

system. AWGs have filtering properties and versatility. A large number of wavelengths and channels can be obtained, enabling multiplexing and demultiplexing of tens to hundreds of wavelengths. Utilize N×N

matrix form.

Simultaneous transmission of N on N wavelengths

Different optical signals, and can flexibly form multi-functional devices and modules with other optical devices. In addition, AWG also has high stability and good cost performance, which is very suitable for high-speed and large-capacity DWDM

system use.

AWG device is a planar waveguide type device based on optical integration technology. It has the potential advantages of planar waveguide technology and is suitable for mass production. It has good repeatability, small size, good insertion loss uniformity, and thermal stability after temperature control. up to 0.0013

nm/℃, and can be integrated with active devices to form an optoelectronic integrated circuit (OEIC), etc., is the mainstream technology for future development.

At present, there are mainly three types of DWDM technologies developed at home and abroad, which are based on arrayed waveguide gratings (AWG-Arrayed

Waveguide

Grating) and Dielectric Film Filter (TFF) and Fiber Grating (FBG) technology.

AWG is a planar waveguide device, which is an arrayed waveguide grating fabricated on a chip substrate using PLC technology. Compared with FBG and TTF, AWG has the advantages of high integration, large number of channels, low insertion loss, and easy batch automated production.