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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.2
- 수록면
- 135 - 139 (5page)
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I propose a vector passive harmonic mode-locked fiber laser based on topological insulator Bi<sub>2</sub>Se<sub>3</sub>interacting with a fiber taper with a diameter of 7 μm. The particles of topological insulator are depositeduniformly onto the fiber taper with light pressure effect. By incorporating the fabricated saturable absorberinto an Er-doped fiber laser cavity, stable mode-locked fiber is obtained. Due to the intense evanescentfield of the fiber taper, strong confinement of light enhances the nonlinearity of the laser cavity, and passiveharmonic mode-locking is performed. I observe a maximum harmonic mode-locking of 356th, correspondingto a frequency of 3.57 GHz. The pulse duration is 824 fs, and the full width at half maximum of thespectrum is about 8.2 nm. The polarization dependent loss of the saturable absorber is ~ 2.5 dB in thewavelength range of the C band. As the cavity contains no other polarization dependent device, themode-locked laser is functioning in the vector state. The harmonic order vs pump power is investigated. To the best of our knowledge, this report is the highest frequency mode-locked fiber laser based on Bi<sub>2</sub>Se<sub>3</sub>. Experimental results indicate that the topological insulator Bi<sub>2</sub>Se<sub>3</sub> functioning with a thin fiber taper iseffective for vector harmonic mode-locking.
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UCI(KEPA) : I410-ECN-0101-2023-425-000238741