Hundred-watt-level phosphosilicate Raman fiber laser with less than 1% quantum defect.

Quantum defect (QD)-induced high thermal load in high-power fiber lasers can largely affect the conversion efficiency, pose a threat to the system security, and even prohibit the further power scaling. In this Letter, we investigate evolutions and influences of the reflectivity of the output coupler, the length of phosphosilicate fiber, and the pump bandwidth, and demonstrate a hundred-watt-level low-QD Raman fiber laser (RFL). The RFL enabled by the boson peak of phosphosilicate fiber achieves a maximum power of 100.9 W with a reduced QD down to 0.97%; the corresponding conversion efficiency reaches 69.8%. This Letter may offer not only an alternative scheme for a high-power, high-efficiency fiber laser, but also great potential on the suppression of thermal-induced effects such as thermal mode instability and the thermal lens effect.

[1]  Jun Ye,et al.  Ultralow-quantum-defect Raman laser based on the boson peak in phosphosilicate fiber , 2020 .

[2]  Chunyang Ma,et al.  Short-pulsed Raman fiber laser and its dynamics , 2020 .

[3]  Sailing He,et al.  High peak-power and narrow-linewidth all-fiber Raman nanosecond laser in 1.65 µm waveband. , 2020, Optics express.

[4]  E. I. Dontsova,et al.  Frequency doubling of multimode diode-pumped GRIN-fiber Raman lasers. , 2019, Optics express.

[5]  Jun Ye,et al.  Pump scheme optimization of an incoherently pumped high-power random fiber laser , 2019, Photonics Research.

[6]  Jun Ye,et al.  Spectrum-Manipulable Hundred-Watt-Level High-Power Superfluorescent Fiber Source , 2019, Journal of Lightwave Technology.

[7]  Yan Feng,et al.  More than 200  W random Raman fiber laser with ultra-short cavity length based on phosphosilicate fiber. , 2019, Optics letters.

[8]  S. Ramachandran,et al.  High-power, cascaded random Raman fiber laser with near complete conversion over wide wavelength and power tuning. , 2019, Optics express.

[9]  V. Mashinsky,et al.  2.01–2.42 $\mu$m All-Fiber Femtosecond Raman Soliton Generation in a Heavily Germanium Doped Fiber , 2019, IEEE Journal of Selected Topics in Quantum Electronics.

[10]  Yoav Sintov,et al.  1.2  kW clad pumped Raman all-passive-fiber laser with brightness enhancement. , 2018, Optics letters.

[11]  Wei Zhao,et al.  Four-wave mixing effect on high-power continuous-wave all-fiber lasers , 2018, Modern Physics Letters B.

[12]  Lei Zhang,et al.  High order cascaded Raman random fiber laser with high spectral purity. , 2018, Optics express.

[13]  Sergey I. Kablukov,et al.  Cascaded Raman lasing in a PM phosphosilicate fiber with random distributed feedback , 2018, LASE.

[14]  A. Tünnermann,et al.  Determination of Thermal Load from Core Temperature Measurements in Single Mode Ytterbium-Doped Fiber Amplifiers , 2015 .

[15]  Duanduan Wu,et al.  Intermode beating mode-locking technique for O-band mixed-cascaded Raman fiber lasers. , 2015, Optics letters.

[16]  M. Zervas,et al.  High Power Fiber Lasers: A Review , 2014, IEEE Journal of Selected Topics in Quantum Electronics.

[17]  J. Limpert,et al.  Analysis of stimulated Raman scattering in cw kW fiber oscillators , 2014, Photonics West - Lasers and Applications in Science and Engineering.

[18]  J. Limpert,et al.  High-power fibre lasers , 2013, Nature Photonics.

[19]  V. Supradeepa,et al.  Power scaling of high-efficiency 1.5 μm cascaded Raman fiber lasers. , 2013, Optics letters.

[20]  H. Bartelt,et al.  Thin-disk laser-pumping of ytterbium-doped fiber laser , 2011 .

[21]  A. Tünnermann,et al.  High-power tandem pumped fiber amplifier with an output power of 2.9 kW. , 2011, Optics letters.

[22]  Z. Cai,et al.  Theoretical and Experimental Optimization of O-Band Multiwavelength Mixed-Cascaded Phosphosilicate Raman Fiber Lasers , 2011, IEEE Photonics Journal.

[23]  David J. Richardson,et al.  High power fiber lasers: current status and future perspectives [Invited] , 2010 .

[24]  Yan Feng,et al.  150 W highly-efficient Raman fiber laser. , 2009, Optics express.

[25]  H. Shintani,et al.  Universal link between the boson peak and transverse phonons in glass. , 2008, Nature materials.

[26]  Kyunghwan Oh,et al.  Simultaneous amplification and channel equalization using Raman amplifier for 30 channels in 1.3-/spl mu/m band , 2001 .

[27]  David C. Brown,et al.  Thermal, stress, and thermo-optic effects in high average power double-clad silica fiber lasers , 2001 .

[28]  Nam Seong Kim,et al.  Simultaneous two-color CW Raman fiber laser with maximum output power of 1.05 W/1239 nm and 0.95 W/1484 nm using phosphosilicate fiber , 2000 .

[29]  Pu Zhou,et al.  Optical rogue wave in random fiber laser , 2019 .

[30]  Pengfei Ma,et al.  High power all-fiberized and narrow-bandwidth MOPA system by tandem pumping strategy for thermally induced mode instability suppression , 2018, High Power Laser Science and Engineering.