Acta Photonica Sinica, Volume. 46, Issue 8, 814004(2017)
Characteristics of Enhanced SSFS Based on Cascaded Fiber
A structure was designed that a 10m thulium-doped fiber is cascaded to 3 m large-mode-area photonic crystal fiber, and soliton self-frequency shift was generated by a 400 fs, 1 550 nm light pulse. At the same incident power, solitons in thulium-doped fiber experience more frequency-shift than that in large-mode-area fiber by 100-150 nm (30% on the average). Output spectra of soliton and pump at the end of thulium-doped fiber show that the stimulated radiation from Tm3+ is generated among 1.8-2.1 μm by residual pump, which results in greater Raman effect and cause the soliton self-frequency shift enhanced. The findings reveal a way to enhance soliton self-frequency shift, and have significance on extension of tunable range of laser based on soliton self-frequency shift.
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LOU Yang, WEI Yi-zhen. Characteristics of Enhanced SSFS Based on Cascaded Fiber[J]. Acta Photonica Sinica, 2017, 46(8): 814004
Received: Mar. 7, 2017
Accepted: --
Published Online: Oct. 30, 2017
The Author Email: Yang LOU (lou_fsn@hotmail.com)