Infrared and Laser Engineering, Volume. 51, Issue 4, 20210256(2022)
Transverse mode instability effect of fiber lasers with different pump wavelengths
Fig. 4. Output characteristic of fiber oscillator when pumped with 976 nm LD. (a) Output power and optical-to-optical(O-O) efficiency under different pump power; (b) Optical spectrum at the output power of 279 W; (c)-(d) Time domain signals and their Fourier spectra at the output power of 279 W and 235 W, respectively; (e) Beam quality factor and beam profile when the pump power is 483 W
Fig. 5. Output characteristic of fiber oscillator when pumped with 915 nm LD. (a) Output power and O-O efficiency under different pump power; (b) Optical spectrum at the output power of 502 W; (c)-(d) Time domain signals and their Fourier spectra at the output power of 502 W and 468 W, respectively; (e) Beam quality factor and beam profile when the pump power is 952 W
Fig. 6. Output characteristic of fiber oscillator when pumped with 940 nm LD. (a) Output power and O-O efficiency under different pump power; (b) Optical spectrum at the output power of 697 W; (c)-(d) Time domain signals and their Fourier spectra at the output power of 697 W and 693 W, respectively; (e) Beam quality factor and beam profile when the pump power is 1149 W
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Yingchao Wan, Baolai Yang, Xiaoming Xi, Hanwei Zhang, Yun Ye, Xiaolin Wang. Transverse mode instability effect of fiber lasers with different pump wavelengths[J]. Infrared and Laser Engineering, 2022, 51(4): 20210256
Category: Lasers & Laser optics
Received: Jan. 20, 2022
Accepted: Mar. 7, 2022
Published Online: May. 18, 2022
The Author Email: Wang Xiaolin (chinaphotonics@163.com)