中国物理B ›› 2017, Vol. 26 ›› Issue (5): 54212-054212.doi: 10.1088/1674-1056/26/5/054212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Scaling of Yb-doped photonic crystal fiber to 200 μm core diameter for high beam quality laser output

Kuo Meng(孟阔), Lian-Qing Zhu(祝连庆), Fei Luo(骆飞)   

  1. Beijing Engineering Research Center of Optoelectronics Information and Instrument, Beijing Key Laboratory of Optoelectronic Measurement Technology, Beijing Laboratory for Biomedical Detection Technology and Instrument, Beijing Information Science and Technology University, Beijing 100192, China
  • 收稿日期:2016-07-15 修回日期:2016-12-01 出版日期:2017-05-05 发布日期:2017-05-05
  • 通讯作者: Lian-Qing Zhu E-mail:zhulianqing@sina.com
  • 基金资助:

    Project supported by the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. PCSIRT: 1212), the Key Grant Science and Technology Planning Project of Beijing, China (Grant Nos. PXM2013_014224_000077 and PXM2012_014224_000019), and the Science and Technology Planning Project of Beijing Municipal Commission of Education, China (Grant No. KM201611232008).

Scaling of Yb-doped photonic crystal fiber to 200 μm core diameter for high beam quality laser output

Kuo Meng(孟阔), Lian-Qing Zhu(祝连庆), Fei Luo(骆飞)   

  1. Beijing Engineering Research Center of Optoelectronics Information and Instrument, Beijing Key Laboratory of Optoelectronic Measurement Technology, Beijing Laboratory for Biomedical Detection Technology and Instrument, Beijing Information Science and Technology University, Beijing 100192, China
  • Received:2016-07-15 Revised:2016-12-01 Online:2017-05-05 Published:2017-05-05
  • Contact: Lian-Qing Zhu E-mail:zhulianqing@sina.com
  • Supported by:

    Project supported by the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. PCSIRT: 1212), the Key Grant Science and Technology Planning Project of Beijing, China (Grant Nos. PXM2013_014224_000077 and PXM2012_014224_000019), and the Science and Technology Planning Project of Beijing Municipal Commission of Education, China (Grant No. KM201611232008).

摘要:

The rare earth-doped active fibers not only have ten thousands of square-micron core-area but also deliver a laser with near-diffraction-limited beam quality. However, they have been studied little. In this paper, we design a 200-μm-core-diameter Yb3+-doped photonic crystal fiber with a large pitch in the air-hole cladding region. Simulations demonstrate that only fundamental mode (FM) with a mode field area (MFA) of ~28000 μm2 can be amplified and propagated at the gain saturation, and the beam quality M2 is about 1.5. It is predicted that almost 105 mJ single-pulse energy is available from such a 1.5-meter-length fiber.

关键词: photonic crystal fiber (PCF), fundamental mode (FM), very large mode area (VLMA), fiber amplifier

Abstract:

The rare earth-doped active fibers not only have ten thousands of square-micron core-area but also deliver a laser with near-diffraction-limited beam quality. However, they have been studied little. In this paper, we design a 200-μm-core-diameter Yb3+-doped photonic crystal fiber with a large pitch in the air-hole cladding region. Simulations demonstrate that only fundamental mode (FM) with a mode field area (MFA) of ~28000 μm2 can be amplified and propagated at the gain saturation, and the beam quality M2 is about 1.5. It is predicted that almost 105 mJ single-pulse energy is available from such a 1.5-meter-length fiber.

Key words: photonic crystal fiber (PCF), fundamental mode (FM), very large mode area (VLMA), fiber amplifier

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.81.Dp (Propagation, scattering, and losses; solitons)