Advanced fiber optic solutions was established in 2019 by a group of experienced engineers. We pioneer the design, develop and manufacture a variety of high-quality free space isolators, fiber optic isolators, circulators and switches for all different applications. These devices have broad operation wavelength bandwidth and high quality. Our in-depth knowledge, rich experience, and our passion for best performance and service enable us to provide unique solutions for our valuable customers. For those applications requiring a custom solution, our veteran engineers are ready to meet your challenges and needs with customized needs.