Polarized random laser emission from an oriented disorder polymer optical fiber

Abstract

We demonstrate the realization of a polarized random polymer fiber laser (RPFL) in the different disordered gain media doped polymer optical fibers (POFs). Multiple scattering of disordered media in the orientated POF was experimentally verified to account for polarized lasing observed in our RPFL system. This Letter presents a new avenue for fabricating polarized RPFLs in a large scale. Meanwhile, the polarization-maintaining property of random lasing for different disorder POF are researched, which will open a window to designing a polarization-maintaining random fiber laser.

Coherent and Polarized Random Laser Emissions from Colloidal CdSe/ZnS Quantum Dots Plasmonically Coupled to Ellipsoidal Ag Nanoparticles

“…Although the physical fundamentals responsible for either coherent or incoherent resonant feedbacks are still debatable, a random laser with coherent resonant feedback is naturally expected because of a set of appealing characteristics . In addition, lasing emission with a specific polarization is also important for practical applications, and it becomes extremely valuable if the coherent random laser is able to perform such optically anisotropic property . Therefore, it is desirable to have scattering centers for colloidal QDs‐based random lasers with multiple functions of lowering pump threshold, providing strong scatterings, and having optical anisotropy.…”

Lévy Statistics and Glassy Behavior of Light in Random Fiber Lasers

“…Indeed, by further exploiting the Rayleigh mechanism due to refractive index fluctuations as the multiple light scattering mechanism, a myriad of novel types of RFLs have been demonstrated using stimulated Raman or Brillouin scattering process. As most of the works between 2007 and 2014 has been reviewed in [47,48], including polymer-based optical fibers or plasmonically-enhanced RFLs, we highlight here the diversity of works reported over the years 2015 and 2016 (see [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66] and references therein). As examples, we mention that a Q-switched operation has been reported using Brillouin scattering [56], with pulses as short as 42 ns at 100 kHz being demonstrated.…”

Experimental and Theoretical Investigation of the Polymer Optical Fiber Random Laser with Resonant Feedback

“…Conversely, the size of the second type of RFLs is in the centimeter scale . Moreover, the properties of the second type of RFLs (e.g., shape, size, lasing wavelength, and laser threshold) could be tuned via controlling the fiber materials, scatterers, and optical gain medium . As a result, the second type of RFLs can be regarded as ideal experimental systems for the investigation of random lasing with novel materials (like plasmonic materials), which have already been reported in several studies .…”

“…These RFLs have several merits like low threshold, directional output, and low‐cost fabrication, indicating that they are superior to other conventional RLs in some applications . According to the feedback mechanism, RFLs can be generally classified into two categories: (1) RFLs based on common single mode fibers with the feedback provided by Rayleigh scattering and Raman effect, (2) RFLs based on specific fibers (e.g., liquid core optical fibers, polymer optical fibers, and erbium‐doped fibers) with the feedback provided by doped particles or randomly distributed Bragg gratings . For the first type of RFLs, their length are normally more than several kilometers, which limits their applications .…”