AWG Calculation Method

11/24

2021

Meaning of AWG	American Wire Gauge
Calculation Method	AWG#＝49.8813-9.92980logA
Explanation	A - Conductor Area (circular mil)
	A=d1d1+d2d2+........+dn*dn
	dn - Diameter of stranded single wire (mil)
Example	Calculate the gauge number (AWG) for 7/0.16mm wire
	1: 0.16mm=6.2992mil
	2: A=7X6.2992X6.2992=277.759
	3: AWG#=25.62 (approximately 26)
Remarks
1: The above is for reference only.
2: Compiled by: Suzhou Tongyuan Technical Department // Zhao Hua

AWG is another method used in making DWDM. A grating formed by a group of optical waveguides arranged at specific lengths, used for wavelength division. Mainly used in the production of high-density wavelength multiplexers/demultiplexers (DWDM). Its principle is: first, the light source Start using (including optical modulated signals of multiple wavelengths) is divided by a wavelength division element into several to dozens of sub-light sources with roughly equal amplitude, then these sub-light sources are sequentially guided into an array waveguide designed with specific lengths, so that each has a specific output phase, and after passing through multiple output coupling elements, constructive interference will form at specific positions for specific wavelengths of the light source and output. This allows different wavelength light sources (signals) to be distributed or extracted, achieving the purpose of wavelength multiplexing/demultiplexing.

AWG is the first component to apply Planar Lightwave Circuit (PLC) technology to commercialization. The process involves depositing a silicon dioxide (SiO2) film layer on a silicon wafer, then using photolithography and reactive ion etching (RIE) to define the array waveguide and wavelength division elements, followed by covering with a protective layer on top to complete. Since AWG uses the same process as general semiconductors, the production cost for multi-channel devices is similar to that of low-channel devices, but it is more suitable for mass production and has higher integration, thus having considerable potential in multi-channel devices and future development.

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