An Organic Microcavity Laser Amplifier Integrated on the End Facet of an Optical Fiber.

ABSTRACT: We report a thin-film optical amplifier integrated on a fiber facet based on polymer-coated distributed feedback (DFB) microcavities, which are fabricated on a planar substrate and then transferred onto fiber tips by means of a flexible transfer technique. The amplified light directly couples into the fiber and is detected when coupled out at the other end after propagating along the fiber for about 20 cm. A prominently amplification factor of about 4.33 at 578.57 nm is achieved by sending supercontinuum pulses into the hundreds of micrometers' DFB microcavities along the normal direction, which is also the axis direction of the fiber. The random distortions of grating lines generated during the transfer process result in a larger amplification spectral range and a less strict polarization

SUBMITTER: Wang M 

PROVIDER: S-EPMC11313935 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature