Details

Autor(en) / Beteiligte

• Yin, Taoce
• Song, Yufu
• Jiang, Xiaogang
• Chen, Feihong
• He, Sailing

Titel

400 mW narrow linewidth single-frequency fiber ring cavity laser in 2 um waveband

Ist Teil von

• Optics express, 2019-05, Vol.27 (11), p.15794-15799

Ort / Verlag

United States

Erscheinungsjahr

2019

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• We present a single-frequency thulium-doped fiber laser (TDFL) with a narrow linewidth of 20 kHz. Stable single-longitudinal-mode (SLM) lasing operation at 1957 nm is achieved using a segment of un-pumped polarization-maintaining thulium-doped fiber (PM-TDF) as an ultra-narrow bandwidth filter. A high optical signal-to-noise ratio (OSNR) of over 60 dB is obtained and a high power of over 400 mW is achieved with a high slope-efficiency (~45.8%) thulium-doped fiber amplifier (TDFA).