Bunimovich Stadium-Like Resonator for Randomized Fiber Laser Operation
AbstractA silica resonator was demonstrated for random laser generation. The resonator consisted of a conventional microsphere fabricated in an optical fiber tip through electric arc discharge, and modifications to its geometry were carried out to create asymmetry inside the silica structure. The resulting Bunimovich stadium-like microsphere promotes multiple reflections with the boundaries, following the stochastic properties of dynamic billiards. The interference of the multiple scattered beams generates a random signal whose intensity was increased by sputter-coating the microstadium with a gold thin film. The random signal is amplified using an erbium-doped fiber amplifier (EDFA) in a ring cavity configuration with feedback, and lasing is identified as temporal and spectral random variations of the signal between consecutive measurements. View Full-Text
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Silveira, B.; Gomes, A.; Becker, M.; Schneidewind, H.; Frazão, O. Bunimovich Stadium-Like Resonator for Randomized Fiber Laser Operation. Photonics 2018, 5, 17.
Silveira B, Gomes A, Becker M, Schneidewind H, Frazão O. Bunimovich Stadium-Like Resonator for Randomized Fiber Laser Operation. Photonics. 2018; 5(3):17.Chicago/Turabian Style
Silveira, Beatriz; Gomes, André; Becker, Martin; Schneidewind, Henrik; Frazão, Orlando. 2018. "Bunimovich Stadium-Like Resonator for Randomized Fiber Laser Operation." Photonics 5, no. 3: 17.
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