In 2021, Taiwan's photonics industry production value reached NT$1,755.2 billion (including compound semiconductors), an increase of 17.1% from NT$1,498.9 billion in 2020, as shown in Fig.1. The production value of NT$1,755.2 billion is equivalent to US$60.95 billion, a significant increase of 24.7% from the value of US$48.87 billion in 2020. The growth rate of the above-mentioned US dollar version is 24.7% and is higher than that of the Taiwan dollar version, which is 17.1%, and the difference between the two comes from the contribution of the appreciation of the New Taiwan dollar. In addition, according to the estimation of the Optical Society of America (OPTICA), the global photonics industry reached approximately US$631.9 billion in 2021, so Taiwan photonics industry accounts for about 9.6% of the global industry.