19 July 2016 Linearly polarized, Q-switched, erbium-doped fiber laser incorporating a bulk-structured bismuth telluride/polyvinyl alcohol saturable absorber
Author Affiliations +
Abstract
We experimentally demonstrate a linearly polarized, passively Q-switched, erbium (Er)-doped fiber laser using a saturable absorber (SA) based on a composite consisting of a bulk-structured bismuth telluride (Bi2Te3) topological insulator (TI) and polyvinyl alcohol (PVA). The SA was constructed on a polarization maintaining (PM) fiber ferrule platform, which had a sandwich structure. Its saturation intensity and modulation depth were measured to be ∼47.56  MW/cm2 and ∼4.1%, respectively. Using the prepared Bi2Te3/PVA SA in a PM Er-doped fiber ring laser, stable Q-switched pulses with a degree of polarization of ∼98.6% and an azimuth angle of ∼−0.34  deg were demonstrated. The minimum pulse width was measured to be ∼1.58  μs at a repetition rate of 47.1 kHz. This experimental demonstration verifies that a thin film based on a bulk-structured Bi2Te3 TI can fit into a sandwich-structured SA based on PM fiber ferrules.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jinho Lee, Jinho Lee, Junsu Lee, Junsu Lee, Joonhoi Koo, Joonhoi Koo, Hojai Chung, Hojai Chung, Ju Han Lee, Ju Han Lee, } "Linearly polarized, Q-switched, erbium-doped fiber laser incorporating a bulk-structured bismuth telluride/polyvinyl alcohol saturable absorber," Optical Engineering 55(7), 076109 (19 July 2016). https://doi.org/10.1117/1.OE.55.7.076109 . Submission:
JOURNAL ARTICLE
7 PAGES


SHARE
Back to Top