Scientists at the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences have proposed an innovative ...

External cavity laser diodes (ECLs) are lasers with a very small line width, excellent wavelength stability, and very low noise. They are used in optical communication and fibre sensor technology.

The suppressive effect was analyzed by examining two types of phase noise resulting from center-frequency drift and linewidth of laser. The experimental results demonstrate that EF-PDDT achieves a ...

Abstract: We report a novel 795 nm VCSEL with longitudinal three coupled cavity. Because of large increasing the photon lifetime, the spectrum linewidth has been reduced to be 7.3 MHz (limited by the ...