All-fiber mode-locked laser using platinum film-coated microfiber

Zhang Shulin; Zhu Guoli; Dong Guangyan

doi:10.11884/HPLPB202335.220263

Volume 35 Issue 3

Mar. 2023

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Zhang Shulin, Zhu Guoli, Dong Guangyan. All-fiber mode-locked laser using platinum film-coated microfiber[J]. High Power Laser and Particle Beams, 2023, 35: 031002. doi: 10.11884/HPLPB202335.220263

Citation:

Zhang Shulin, Zhu Guoli, Dong Guangyan. All-fiber mode-locked laser using platinum film-coated microfiber[J]. High Power Laser and Particle Beams, 2023, 35: 031002. doi: 10.11884/HPLPB202335.220263

Zhang Shulin, Zhu Guoli, Dong Guangyan. All-fiber mode-locked laser using platinum film-coated microfiber[J]. High Power Laser and Particle Beams, 2023, 35: 031002. doi: 10.11884/HPLPB202335.220263

Citation:

Zhang Shulin, Zhu Guoli, Dong Guangyan. All-fiber mode-locked laser using platinum film-coated microfiber[J]. High Power Laser and Particle Beams, 2023, 35: 031002. doi: 10.11884/HPLPB202335.220263

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All-fiber mode-locked laser using platinum film-coated microfiber

doi: 10.11884/HPLPB202335.220263

The 27th Research Institute of China Electronics Technology Group Corporation, Zhengzhou 450047, China

Received Date: 2022-08-26
Accepted Date: 2022-11-09
Rev Recd Date: 2022-11-02

Available Online: 2022-11-11

Publish Date: 2023-03-01

Abstract

Abstract

In this paper, the finite element method is used to simulate the energy, electric field and effective refractive index changes of the modes in the microfiber before and after coating. The transmission characteristics of HE₁₁, TE₀₁, HE₂₁ and TM₀₁ modes in the microfiber and the interaction principle with the platinum film are analyzed. The microfiber was fabricated by etching the optical fiber with buffer oxide etchant, and the platinum film was coated by ion sputtering to obtain a microfiber device with a diameter of 13.2 μm and a platinum film thickness of 40 nm. Its saturable absorption properties were tested, the modulation depth and saturation intensity were 0.57% and 0.8 MW/cm², respectively. An all-fiber mode-locked laser was fabricated, its mode-locked threshold is 180 mW. The mode-locked pulse repetition rate is 17.93 MHz, the pulse width is 103 ps, the center wavelength is 1031.6 nm, and the full width at half maximum is 3.5 nm.
- fiber laser,
- mode lock,
- saturable absorber,
- microfiber,
- platinum film-coated

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References(21)

References

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