Simple method to generate all fiber CVBs and LP01 mode switchable laser

Xinhua Jiang; Anting Wang

doi:10.1117/12.2653548

28 December 2022 Simple method to generate all fiber CVBs and LP₀₁ mode switchable laser

Xinhua Jiang, Anting Wang

Proceedings Volume 12310, Advanced Lasers, High-Power Lasers, and Applications XIII; 123100I (2022) https://doi.org/10.1117/12.2653548
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

We propose and demonstrate a simple method to generate an all-fiber CVBs and LP₀₁ mode switchable laser using a few-mode fiber Bragg grating. A few-mode circulator is used to output the excited high-order modes. By adjusting the temperature to change the laser wavelength in the cavity, switching of the fundamental mode and the radial and azimuthally polarized laser is realized and their efficiencies are 10.76% and 5.55%, respectively. The purity of the radial and the azimuthally polarized beam is higher than 98%. The working wavelength of the radial and the azimuthally polarized beam is 1549.6nm. The 30 dB bandwidth is less than 0.15 nm, and the side mode suppression ratio is more than 73dB.

Citation Download Citation

Xinhua Jiang and Anting Wang "Simple method to generate all fiber CVBs and LP₀₁ mode switchable laser", Proc. SPIE 12310, Advanced Lasers, High-Power Lasers, and Applications XIII, 123100I (28 December 2022); https://doi.org/10.1117/12.2653548

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