Generation of stable and narrow spacing dual-wavelength ytterbium-doped fiber laser using a photonic crystal fiber

Harith Ahmad, Muhammad Aizi Mat Salim, Mohammad Reza K. Soltanian, Saaidal Razalli Azzuhri, Sulaiman Wadi Harun, Moh Yasin

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We demonstrate the design and operation of novel narrow spacing and stable dual-wavelength fiber laser (DWFL). A 70-cm ytterbium-doped fiber has been chosen as the gain medium in a ring cavity arrangement. Our design includes a short length photonic crystal fiber, acting as a dual-wavelength stabilizer based on its birefringence coefficient and nonlinear behavior and tunable band pass filter (TBPF) to achieve narrow spacing spectrum lasing. Our laser output is considered to be highly stable, with power fluctuation less than 0.8 dB over a period of 15 min. The flexibility and tunability of TBPF, together with polarization controller enable the spacing tuning of the DWFL from 0.03 nm up to 0.07 nm for 1040 nm region, and 0.10 nm up to 0.40 nm for 1060 nm region. The tunable wavelength spacing shows the flexibility of the DWFL in addition to stable and reliable properties of fiber laser in 1-m region.

Original languageEnglish
Pages (from-to)968-973
Number of pages6
JournalJournal of Modern Optics
Volume63
Issue number10
DOIs
Publication statusPublished - 30 May 2016

Keywords

  • Dual wavelength
  • fiber laser
  • narrow spacing
  • ytterbium

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