Laser Focus World's top 20 photonics technology picks for 2021: In 2021, advances in optics and photonics encompass the fields of laser optics, integrated photonics, quantum optical systems, and much more.

The article discusses advances in optics and photonics in 2021 for use in the field of laser optics, integrated photonics, quantum optical systems, and other industrial applications. Some of them are advances in lasers as use of two-photon polymerization, to cool some solid-state substances via anti-Stokes fluorescence and pixelated microdisplay that can alter polarization at each pixel.