High-power dual-wavelength Ho-doped fiber laser at >2 μm tandem pumped by a 1.15 μm fiber laser

We demonstrated a high-power continuous-wave (CW) dual-wavelength Ho-doped fiber laser (HDFL) at 2049 nm and 2153 nm with a simple coupled-cavity configuration. A ~100 W laser diode-pumped fiber laser at 1150 nm served as the pump source. The maximum output power reached ~22.3 W and the slope efficiency was 23%. By altering the incident pump power, the power ratio of two signal wavelengths could be tuned in a large range due to gain competition. As far as we know, this is the first CW dual-wavelength HDFL with the power exceeding ten-watt-level, and the first dual-wavelength HDFL with the central wavelengths exceeding 2.0 μm and 2.15 μm respectively.

[1]  G. Erbert,et al.  Directly diode-pumped holmium fiber lasers. , 2007, Optics letters.

[2]  S. Feng,et al.  1.94 μm switchable dual-wavelength Tm3+ fiber laser employing high-birefringence fiber Bragg grating. , 2013, Applied optics.

[3]  Zejin Liu,et al.  Raman fiber laser-pumped high-power, efficient Ho-doped fiber laser , 2014 .

[4]  Yulong Tang,et al.  Dual-Wavelength 2- $\mu \text{m}$ Fiber Laser With Coupled Fiber Bragg Grating Cavities , 2016, IEEE Photonics Technology Letters.

[5]  Zhongmin Yang,et al.  Highly Tm3+ doped germanate glass and its single mode fiber for 2.0 μm laser , 2016, Scientific Reports.

[6]  John Haub,et al.  A review of recent progress in holmium-doped silica fibre sources , 2014 .

[7]  Daru Chen,et al.  Switchable and tunable thulium-doped fiber laser incorporating a Sagnac loop mirror. , 2014, Applied optics.

[8]  Yulong Tang,et al.  A random Q-switched fiber laser , 2015, Scientific Reports.

[9]  Qing Wang,et al.  Development of Eye-Safe Fiber Lasers Near 2 μm , 2014, IEEE Journal of Selected Topics in Quantum Electronics.

[10]  Xia Yu,et al.  Tunable and switchable dual-wavelength Tm-doped mode-locked fiber laser by nonlinear polarization evolution. , 2015, Optics express.

[11]  Deming Liu,et al.  2-μm switchable, tunable and power-controllable dual-wavelength fiber laser based on parallel cavities using 3 × 3 coupler , 2015 .

[12]  John Haub,et al.  A monolithic cladding pumped holmium-doped fibre laser , 2013, CLEO: 2013.

[13]  Pu Zhou,et al.  Stable all-fiber dual-wavelength thulium-doped fiber laser and its coherent beam combination , 2011 .

[14]  Andrei S Kurkov,et al.  Tunable Ho-doped soliton fiber laser mode-locked by carbon nanotube saturable absorber , 2012 .

[15]  Xiaojun Xu,et al.  Hundred-watt-level high power random distributed feedback Raman fiber laser at 1150 nm and its application in mid-infrared laser generation. , 2015, Optics express.

[16]  Pu Zhou,et al.  High power, compact, passively Q-switched Ho-doped fiber laser tandem pumped by a 1150 nm Raman fiber laser , 2014 .

[17]  Qi Jie Wang,et al.  Widely tunable Tm-doped mode-locked all-fiber laser , 2016, Scientific Reports.

[18]  J. Rothenberg,et al.  Low-phase-noise, single-frequency, single-mode 608 W thulium fiber amplifier. , 2009, Optics letters.

[19]  A. Kurkov,et al.  All-fiber 10 W holmium lasers pumped at lambda=1.15 microm. , 2010, Optics letters.

[20]  John Haub,et al.  A cladding-pumped, tunable holmium doped fiber laser. , 2013, Optics express.

[21]  S. Harun,et al.  A Stable Dual-wavelength Thulium-doped Fiber Laser at 1.9 μm Using Photonic Crystal Fiber , 2015, Scientific Reports.

[22]  Z. Dong,et al.  Tunable Dual-Wavelength Thulium-Doped Fiber Laser by Employing a HB-FBG , 2014, IEEE Photonics Technology Letters.

[23]  D. Fan,et al.  Widely tunable dual-wavelength operation of a high-power Tm:fiber laser using volume Bragg gratings. , 2010, Optics letters.

[24]  Pu Zhou,et al.  High-power Ho-doped all-fiber superfluorescent source pumped by a 1150  nm Raman fiber laser. , 2014, Applied optics.

[25]  Jianquan Yao,et al.  Dual-wavelength fiber laser operating above 2 μm based on cascaded single-mode-multimode-single-mode fiber structures. , 2016, Optics express.

[26]  P. Zhou,et al.  Laser diode-pumped dual-cavity high-power fiber laser emitting at 1150  nm employing hybrid gain. , 2016, Applied optics.

[27]  S. Ferrari,et al.  Author contributions , 2021 .

[28]  Lei Zhang,et al.  Integrated ytterbium-Raman fiber amplifier. , 2014, Optics letters.

[29]  S. Jackson.  Towards high-power mid-infrared emission from a fibre laser , 2012, Nature Photonics.

[30]  Pu Zhou,et al.  High power Yb-Raman combined nonlinear fiber amplifier. , 2014, Optics express.