Linearly polarized, Q-switched, erbium-doped fiber laser incorporating a bulk-structured bismuth telluride/polyvinyl alcohol saturable absorber

Jinho Lee; Junsu Lee; Joonhoi Koo; Hojai Chung; Ju Han Lee

doi:10.1117/1.OE.55.7.076109

19 July 2016 Linearly polarized, Q-switched, erbium-doped fiber laser incorporating a bulk-structured bismuth telluride/polyvinyl alcohol saturable absorber

Jinho Lee, Junsu Lee, Joonhoi Koo, Hojai Chung, Ju Han Lee

Author Affiliations +

Optical Engineering, Vol. 55, Issue 7, 076109 (July 2016). https://doi.org/10.1117/1.OE.55.7.076109

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.

Citation Download Citation

Jinho Lee, Junsu Lee, Joonhoi Koo, Hojai Chung, and 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

Published: 19 July 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available