Flexible, Stretchable, Tunable, and Switchable DFB Laser

We are reporting on easily-made, flexible, wearable, and stretchable holographic gratings for tunable distributed-feedback lasers. The laser device is formed by the integration of a reflection volume phase grating in flexible substrate. recorded photopolymerizable mixture using optical holography. photopolymerizing material new compound derived from recently developed which based largely haloalkanes acrylates. An appropriate choice photoinitiators promotes photoactivation monomers at writing wavelength 460 nm. has low emission threshold due to high efficiency photopolymerization process Finally, amplified spontaneous can be continuously tuned simply bending film. This peculiarity promising manufacturing pumped organic lasers displays.