National Institute of Measurement and Testing Technology

Cascaded‐Gain‐Amplified Fiber Microcavity Laser With Attomolar Detection Limit

ABSTRACT Optical fiber microcavities have attracted considerable interest for their potential in developing multi‐color microlasers and high‐performance sensors. Owing to their high Q‐factor‐enhanced light‐matter interaction, fiber microcavity lasers have been extensively investi...