Do optical engineers need a certificate to be recognized?

Yes, it does.

Optical engineer (optical engineer): the use of engineering knowledge and mathematical theories and methods to design the application of optical information processing, optical communications and optical energy and other fields of technology.

In China, under the suggestion of academician Wang Daheng, the Academic Degrees Committee of the State Council agreed to list "optical engineering" as a first-level discipline of engineering. As a cross-discipline of science and technology, the theoretical system of optical engineering has been continuously improved and developed, and now optical engineering has been developed into a discipline that focuses on optics and is closely intertwined and interpenetrated with the disciplines of information science, energy science, material science, life science, space science, precision machinery and manufacturing, computer science and microelectronics technology, etc.

It is the first discipline of engineering in China.

It contains many important emerging branches of science, such as laser technology, fiber optic communications, optical storage and recording, optical information processing, optoelectronic display, holographic and three-dimensional imaging, thin film and integrated optics, optical and fiber optic sensing, optical detection, laser material handling and processing, low light and infrared thermal imaging, optoelectronic measurements, modern optical and optoelectronic instrumentation and devices, optical remote sensing technology and comprehensive Optical engineering technology. These branches not only make a qualitative leap in the discipline of optical engineering, but also promote the establishment of a rapidly expanding scale of unprecedented modern optics and optoelectronics industry.