Next Article in Journal / Special Issue
Characteristics and Laser Performance of Yb3+-Doped Silica Large Mode Area Fibers Prepared by Sol–Gel Method
Previous Article in Journal / Special Issue
Towards Water-Free Tellurite Glass Fiber for 2–5 μm Nonlinear Applications
Fibers 2013, 1(3), 82-92; doi:10.3390/fib1030082

Heavily Tm3+-Doped Silicate Fiber for High-Gain Fiber Amplifiers

1,* , 1
1 Department of Electro-optical Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Rd, 10608, Taiwan 2 AdValue Photonics Inc., 3708 E. Columbia Street, Suite 100, Tucson, AZ 85714, USA
* Author to whom correspondence should be addressed.
Received: 4 November 2013 / Revised: 26 November 2013 / Accepted: 27 November 2013 / Published: 3 December 2013
(This article belongs to the Special Issue Advances on Optical Fibers)
View Full-Text   |   Download PDF [420 KB, 5 December 2013; original version 3 December 2013]   |   Browse Figures


We report on investigation the potential of a 7 wt% (8.35 × 1020 Tm3+/cm3) doped silicate fibers for high-gain fiber amplifiers. Such a high ion concentration significantly reduces the required fiber length of high-power 2 μm fiber laser systems and allows the high-repetition rate operation in 2 μm mode-locked fiber lasers. To evaluate the feasibility of extracting high gain-per-unit-length from this gain medium, we measure several key material properties of the silicate fiber, including the absorption/emission cross-sections, upper-state lifetime, fiber background loss, and photodarkening resistance. We show through numerical simulations that a signal gain-per-unit-length of 3.78 dB/cm at 1950 nm can be achieved in a watt-level core-pumped Tm3+-doped silicate fiber amplifier. In addition, an 18-dB 2013-nm amplifier is demonstrated in a 50-cm 7 wt% Tm3+-doped double-clad silicate fiber. Finally, we experimentally confirm that the reported silicate host exhibits no observable photodarkening.
Keywords: Thulium; silicate fiber; fiber laser; fiber amplifiers Thulium; silicate fiber; fiber laser; fiber amplifiers
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
MDPI and ACS Style

Lee, Y.-W.; Chien, H.-W.; Cho, C.-H.; Chen, J.-Z.; Chang, J.-S.; Jiang, S. Heavily Tm3+-Doped Silicate Fiber for High-Gain Fiber Amplifiers. Fibers 2013, 1, 82-92.

View more citation formats

Related Articles

Article Metrics


Cited By

[Return to top]
Fibers EISSN 2079-6439 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert