Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 35,
  • Issue 24,
  • pp. 5473-5478
  • (2017)

A Stable Twin-Core-Fiber-Based Integrated Coupler Fabricated by Thermally Diffused Core Technique

Not Accessible

Your library or personal account may give you access

Abstract

A type of stable integrated couplers based on the twin-core fiber (TCF) is proposed and demonstrated. The integrated coupler is fabricated by heating a piece of TCF with the thermally diffused core technique. During the heating process, the dopant in the cores of the TCF will diffuse to the cladding which leads to expansion of the core mode fields. As a result, the optical power in the two cores can be coupled to each other. Because the external shape of the coupling region of the TCF coupler does not change, such type of couplers have high mechanical strength and stable responses to temperature, strain, and surrounding refractive index changes. The coupling characteristics between the cores of the thermally diffused TCF are theoretically analyzed and experimentally investigated. Results show that the coupler is almost stable when the temperature changed from 30 to 120 °C, the strain changed from $0\;{{\mathbf \mu \varepsilon }}$ to $1923\;{{\mathbf \mu \varepsilon }}$ , and the external refractive index ranged from 1.3435 to 1.3676.

PDF Article
More Like This
Highly sensitive vector curvature sensor based on a triple-core fiber interferometer

Shaoxian Zhang, Ai Zhou, Huiyong Guo, Yujia Zhao, and Libo Yuan
OSA Continuum 2(6) 1953-1963 (2019)

Integrated fiber Michelson interferometer based on poled hollow twin-core fiber

Zhihai Liu, Fusen Bo, Lei Wang, Fengjun Tian, and Libo Yuan
Opt. Lett. 36(13) 2435-2437 (2011)

All-fiber tunable bandpass filter based on cascaded twin-core fiber

Ganbin Lin and Xiaopeng Dong
Appl. Opt. 50(36) 6667-6670 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved