Double-side polished fiber for generation of mode-locked fiber lasers

Document Type

Article

Publication Date

1-15-2021

Abstract

A double-side polished fiber (DSPF) is fabricated for the passive generation of mode-locked pulses in an optical fiber ring cavity. The DSPF is made using a modified wheel polishing technique and coated with a cobalt oxide (Co3O4) solution as a saturable absorber (SA) to induce mode-locked operation by evanescent field interaction. The laser uses a thulium-holmium-doped fiber (THDF) for lasing in the two-micron region, with a mode-locked output having a pulse width of 1.44 ps. The repetition rate of the pulses is 11.8 MHz with a relatively high optical-signal-to-noise ratio value of 56 dB. This work demonstrates the fabrication method of the DSPF that would have potential applications as a SA for generating high power ultrafast lasers.

Keywords

Side-polished fiber, Mode-Locking, Thulium-Homium-doped Fiber Laser, Double-side polished fiber

Publication Title

Optics Communications

Divisions

Science,photonics

Funders

Ministry of Education, Malaysia,Universiti Malaya [TOP 100 PRC] [ RK 021 - 2019] [RU 011 - 2019]

Volume

479

Publisher

Elsevier

Publisher Location

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

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