Yongzhi Wang, Hongyu Luo, Biao Wang, Jianfeng Li, Yong Liu, "Q-switched Er3+/Dy3+ codoped ZrF4 fiber laser: continuously tunable pulse generation from 3.06 to 3.62 µm," Chin. Opt. Lett. 21, 041402 (2023)
- Chinese Optics Letters
- Vol. 21, Issue 4, 041402 (2023)
Fig. 1. Experimental setup of the tunable Q-switched Er3+/Dy3+ codoped ZrF4 fiber laser using the Fe2+:ZnSe crystal or InAs SA. LD, laser diode; L1 and L2, aspheric lenses; L3, off-axis parabolic reflector; FM, front mirror; DM, dichroic mirror; L4 and L5, CaF2 plano-convex lenses; LF, longpass filter; BT, beam trap.
Fig. 2. Fe2+:ZnSe crystal based laser output characteristics at a fixed wavelength. (a) Temporal behaviors; (b) optical and RF (inset) spectra; (c) pulse width and repetition rate versus pump power; (d) average power and pulse energy versus pump power.
Fig. 3. Fe2+:ZnSe crystal-based laser output characteristics with the tuned wavelength. (a) Optical spectra; (b) pulse width and repetition rate versus wavelength; (c) average power and pulse energy versus wavelength.
Fig. 4. InAs SA-based laser output characteristics with the tuned wavelength. (a) Optical spectra; (b) pulse width and repetition rate versus wavelength; (c) average power and pulse energy versus wavelength.
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