Details

Autor(en) / Beteiligte

• Zhang, Liang
• Qiu, Zenghuan
• Xiao, Zhelan
• Zhang, Jilin
• Pang, Fufei
• Wang, Tingyun
• Bao, Xiaoyi

Titel

Frequency-stabilized Brillouin random fiber laser enabled by self-inscribed transient population grating

Ist Teil von

• Optics letters, 2022-01, Vol.47 (1), p.150-153

Ort / Verlag

United States: Optical Society of America

Erscheinungsjahr

2022

Quelle

OSA_美国光学学会数据库1

Beschreibungen/Notizen

• A frequency-stabilized Brillouin random fiber laser (BRFL) realized by a self-inscribed transient population grating (TPG) is proposed and demonstrated for the first time, to the best of our knowledge. The TPG is formed via the redistribution of the population in erbium-doped fibers (EDFs) by bidirectionally injected phonon-controlled random laser beams. Long-lifetime metastable ion states in EDFs basically prolonged the time dynamics of a stimulated Brillouin scattering (SBS) laser up to milliseconds. Consequently, significant random modes are suppressed with low relative intensity noise, owing to reduced mode hopping in a Stokes random laser, hence one dominating lasing mode at milliseconds of lifetime is established from the competition of numerous random modes, which is proved theoretically and experimentally via TPG.