Acta Optica Sinica, Volume. 40, Issue 2, 0214001(2020)
Single-Pass High-Efficiency Rotational Raman Laser Source Based on Deuterium-Filled Hollow-Core Photonic Crystal Fiber
In this study, a high-efficiency fiber gas laser source is developed in a single-pass deuterium-filled hollow-core photonic crystal fiber by rotational stimulated Raman scattering (SRS). The ordinary dominant vibrational SRS with relatively large gain is suppressed because of the special transmission properties of this low-loss hollow-core photonic crystal fiber, permitting its efficient conversion to a rotational Stokes wave. A homemade 1540-nm nanosecond pulsed fiber amplifier is used to pump a hollow-core photonic crystal fiber having a length of 20 m with a high-pressure deuterium gas. Thus, a high-efficiency 1645-nm Raman laser is obtained using a single-pass configuration. A maximum average output power of ~0.8 W (single-pulse energy of ~1.6 μJ) can be obtained with respect to the 1645-nm Raman laser at a pressure of 2 MPa, and the slope efficiency is observed to be ~71.4%. This study introduces a simple and effective way for the realization of 1.7-μm-band fiber lasers.
Get Citation
Copy Citation Text
Yulong Cui, Wei Huang, Zhiyue Zhou, Zhixian Li, Zefeng Wang. Single-Pass High-Efficiency Rotational Raman Laser Source Based on Deuterium-Filled Hollow-Core Photonic Crystal Fiber[J]. Acta Optica Sinica, 2020, 40(2): 0214001
Category: Lasers and Laser Optics
Received: Jul. 29, 2019
Accepted: Sep. 19, 2019
Published Online: Jan. 2, 2020
The Author Email: Wang Zefeng (hotrosemaths@163.com)