"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Dual-wavelength thulium-doped fibre laser based on Lyot filter incorporating intensity dependent loss mechanism

MUHAMMAD SYAUQI KUSYAIRI JAMALUS1, ABDUL HADI SULAIMAN2,* , HANUN ENANI MUHAMAD ALIZA1, ABDULMOGHNI ALI WAZAE AL ALIMI3, SITI AZLIDA IBRAHIM4, MOHAMMED THAMER ALRESHEEDI5, ENG KHOON NG6, MOHD ADZIR MAHDI3,7, NELIDYA MD YUSOFF1,*

Affiliation

  1. Faculty of Artificial Intelligence, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
  2. School of Physics, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia
  3. Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
  4. Faculty of Engineering, Multimedia University, Persiaran Multimedia 63100, Selangor, Cyberjaya, Malaysia
  5. Department of Electrical Engineering, College of Engineering, P.O. Box 800, King Saud University, Riyadh 11421, Kingdom of Saudi Arabia
  6. Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, United Kingdom
  7. Wireless and Photonics Networks Research Center, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

Abstract

A dual-wavelength thulium-doped fiber laser based on Lyot filter is demonstrated experimentally. A combination of highly nonlinear fiber and a polarizer is applied to induce an intensity-dependent loss mechanism in the laser cavity to suppress homogeneous gain broadening to generate a stable dual output. Upon applying different polarization-maintaining fiber lengths, the wavelength spacing can be changed from 1.8 nm to 0.6 nm. The extinction ratio for the dual lasers is high around 40 dB. The output power is stable with variation of 2.60 dB and 4.69 dB for each channel..

Keywords

Thulium-doped fiber laser, Dual-wavelength fiber laser, Lyot filter, Intensity-dependent loss.

Submitted at: Nov. 5, 2024
Accepted at: April 15, 2025

Citation

MUHAMMAD SYAUQI KUSYAIRI JAMALUS, ABDUL HADI SULAIMAN, HANUN ENANI MUHAMAD ALIZA, ABDULMOGHNI ALI WAZAE AL ALIMI, SITI AZLIDA IBRAHIM, MOHAMMED THAMER ALRESHEEDI, ENG KHOON NG, MOHD ADZIR MAHDI, NELIDYA MD YUSOFF, Dual-wavelength thulium-doped fibre laser based on Lyot filter incorporating intensity dependent loss mechanism, Journal of Optoelectronics and Advanced Materials Vol. 27, Iss. 3-4, pp. 85-92 (2025)