Publication detail

Improvement of the Temperature Stability of the Erbium-Doped Superfluorescent Fiber Source by Tuning the Reflectivity of the Fiber End

SKALSKÝ, M. HNIDKA, J. HAVRÁNEK, Z.

Original Title

Improvement of the Temperature Stability of the Erbium-Doped Superfluorescent Fiber Source by Tuning the Reflectivity of the Fiber End

Type

journal article in Web of Science

Language

English

Original Abstract

A novel and simple way of improving the mean wavelength temperature stability of the erbium-doped superfluorescent source is described and demonstrated. We show that by introducing small reflectivity feedback at the unpumped fiber end in the backward-pump superfluorescent source configuration, we can affect an overall temperature dependency of the mean wavelength of the output spectrum. The reflectivity adjustment can be made by an angled fiber cleave, varying the reflectivity between 0 to 4 %, or by a fusion arc, allowing its finer adjustment. With this approach, we were able to arbitrarily adjust the mean wavelength temperature trend from -4.38 to 5.23 ppm/ ∘ C. Furthermore, an optimal reflectivity was attained, providing almost zero trend and reducing the total mean wavelength variation to 130 ppm over the temperature range of -40 to +100 ∘ C, which is a 5.7-fold and 4.4-fold improvement compared to 0 ∘ and a standard 8 ∘ fiber cleave angle, respectively. By avoiding any filtering components, a wide bandwidth of 37.8 nm and a power efficiency of 22% was reached. Since the proposed configuration does not include any extra components compared to the basic backward-pump configuration, it can be a viable solution for cost-efficient applications, such as, e.g., medium-grade fiber-optic gyroscopes. A benefit for these gyroscopes is the tunability of the source wavelength temperature dependency which can conveniently compensate the gyro coil temperature sensitivity.

Keywords

Er-doped superfluorescent source, fiber-optic gyroscope, temperature stability, cleave angle, reflectivity, doublepass

Authors

SKALSKÝ, M.; HNIDKA, J.; HAVRÁNEK, Z.

Released

15. 3. 2023

Publisher

IEEE

Location

New York, USA

ISBN

1558-2213

Periodical

JOURNAL OF LIGHTWAVE TECHNOLOGY

Year of study

41

Number

6

State

United States of America

Pages from

1843

Pages to

1850

Pages count

8

URL

https://ieeexplore.ieee.org/document/9968288

Full text in the Digital Library

http://hdl.handle.net/11012/209120

BibTex

@article{BUT180640,
  author="Michal {Skalský} and Jakub {Hnidka} and Zdeněk {Havránek}",
  title="Improvement of the Temperature Stability of the Erbium-Doped Superfluorescent Fiber Source by Tuning the Reflectivity of the Fiber End",
  journal="JOURNAL OF LIGHTWAVE TECHNOLOGY",
  year="2023",
  volume="41",
  number="6",
  pages="1843--1850",
  doi="10.1109/JLT.2022.3226206",
  issn="1558-2213",
  url="https://ieeexplore.ieee.org/document/9968288"
}