Linearly polarized operation of a Yb3+-doped double-clad fiber laser

De-jun Feng; Wen-yu Huang; Pei-pei Zhang; Jun Zhou; Xi-jia Gu

doi:10.1117/12.2034953

17 September 2013 Linearly polarized operation of a Yb³⁺-doped double-clad fiber laser

De-jun Feng, Wen-yu Huang, Pei-pei Zhang, Jun Zhou, Xi-jia Gu

Proceedings Volume 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications; 89041L (2013) https://doi.org/10.1117/12.2034953
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

In this work an all-fiber linearly-polarized Yb-doped double-clad fiber laser is proposed, in which the resonance cavity is composed of a pair of polarization maintaining fiber Bragg gratings (PM-FBGs). The polarization hole burning is enhanced by the selective polarization feedback by the PM-FBGs. A three-port polarization beam splitter with fiber pigtail was inserted into the laser cavity to select different polarization states. The laser features wavelength of 1069.72 nm and 1069.98 nm, output power of 125 mW, SNR of 45 dB, slope efficiency of 52%, as well as linewidth of 30.7 pm. The polarization characteristics of the laser are studied by measuring the laser power transmitted through a rotating Glan- Thomson polarizer. The degree of polarization of each lasing line is over 12 dB under different pump levels.

Citation Download Citation

De-jun Feng, Wen-yu Huang, Pei-pei Zhang, Jun Zhou, and Xi-jia Gu "Linearly polarized operation of a Yb³⁺-doped double-clad fiber laser", Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89041L (17 September 2013); https://doi.org/10.1117/12.2034953

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KEYWORDS

Polarization

Fiber lasers

Phase modulation

Fiber Bragg gratings

Laser resonators

Reflectivity

Signal to noise ratio

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