Dual-Wavelength Single-Longitudinal-Mode Tm-Doped Fiber Laser Using PM-CMFBG
We have demonstrated a dual-wavelength thulium-doped fiber laser with single-longitudinal-mode (SLM) operation at ~2-μm region. A polarization-maintaining chirped Moiré fiber Bragg grating was employed as a polarization-dependent narrow-band filter, to suppress multilongitudinal-mode oscillation. S...
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Veröffentlicht in: | IEEE photonics technology letters 2015-05, Vol.27 (9), p.951-954 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We have demonstrated a dual-wavelength thulium-doped fiber laser with single-longitudinal-mode (SLM) operation at ~2-μm region. A polarization-maintaining chirped Moiré fiber Bragg grating was employed as a polarization-dependent narrow-band filter, to suppress multilongitudinal-mode oscillation. Single-and dual-wavelength switchable operation was achieved by simply adjusting the polarization controller. We also showed that the laser lines retained SLM operation with the additional benefit of single polarization. Meanwhile, the dependence of each laser wavelength on the pump power was also investigated in detail. |
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ISSN: | 1041-1135 1941-0174 |
DOI: | 10.1109/LPT.2015.2403842 |