Title :
Stable Single-Longitudinal-Mode Fiber Ring Laser Using Topological Insulator-Based Saturable Absorber
Author :
Shuqing Chen ; Qingkai Wang ; Chujun Zhao ; Ying Li ; Han Zhang ; Shuangchun Wen
Author_Institution :
Key Lab. of Optoelectron. Devices & Syst. of Minist. of Educ. & Guangdong Province, Shenzhen Univ., Shenzhen, China
Abstract :
A single-longitudinal-mode (SLM) fiber ring laser based on topological insulator (TI) Bi2Te3 saturable absorber (SA) had been experimentally demonstrated. The TI: Bi2Te3 nanosheets, which were fabricated through the bottom-up approach, were coated onto the microfiber as an efficient saturable absorber device to ensure the SLM operation. Combined with fiber Bragg grating, the output wavelength can be continuously tuned about 1 nm. Without any accurate cavity control, stable SLM operation without mode hopping had been conveniently achieved. Based on the Lorentzian fitting, the line-width was measured to be less than 10 kHz. The output power of SLM fiber laser can reach up to 23 mW, indicating that the proposed TI-based SA may be suitable for high-optical power SLM operation in the future.
Keywords :
Bragg gratings; bismuth compounds; fibre lasers; laser cavity resonators; laser modes; laser stability; laser tuning; micro-optics; nanofabrication; nanophotonics; nanostructured materials; optical saturable absorption; ring lasers; topological insulators; Bi2Te3; Lorentzian fitting; bottom-up approach; cavity control; fiber Bragg grating; microfiber; nanosheets; output power; output wavelength; saturable absorber device; stable single-longitudinal-mode fiber ring laser; topological insulator-based saturable absorber; Erbium-doped fiber lasers; Optical fiber dispersion; Optical fiber sensors; Optical fibers; Fiber laser; microfiber; single longitudinal mode; topological insulator;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2358855
