一款便携式亚赫兹超稳定laser超过1700公里公路运输
A portable sub Hertz ultra-stable laser over 1700km highway transportation
摘要：
介绍了一种亚Hz线宽便携式超稳激光器，质量为40 kg，体积为400 mm * 280 mm * 450 mm，满足自动锁频和公路运输的要求。建立了超稳激光器各物理部件的动力学分析模型，用有限元法确定了超稳激光器各物理部件的一阶谐振频率，并与实验测量结果进行了比较。为了验证便携式超稳激光器的运输性能，进行了100 km实际公路运输和60 min连续振动的测试，相当于1700 km公路运输。测试的成功表明，便携式超稳激光器非常坚固。便携式超稳激光器的线宽分布中值约为0.78 Hz，平均时间1 ~ 10 s时分数频率不稳定度小于3E-15。该值接近2.0E-15的总噪声，包括热噪声和残余幅度调制。结果表明，便携式超稳激光器在光频传输、光通信等领域有着广阔的应用前景。
英文摘要：
We present a subHz linewidth portable ultrastable laser with the mass and volume of are 40kg and 400mm*280mm*450mm, respectively, that meets the requirements of automatic frequency locking and road transportation. A dynamic analytical model of the physical parts of ultrastable laser is established, and the first order resonance frequency is determined by FEA and well agrees with the experimentally measured result. To verify the transport performance of the portable ultrastable laser, it is tested for 100 km actual road transportation and 60 min continuous vibration, corresponding to 1700 km road transportation. The success of the test demonstrated that the portable ultrastable laser was very robust. Meanwhile, the portable ultrastable lasers shows that the median of the linewidth distribution is approximately 0.78 Hz, and the fractional frequency instability is less than 3E-15 at 1 to 10 s averaging time. This value approaches the total noise of 2.0E-15 including thermal noise and residual amplitude modulation. The robust suggested that the portable ultrastable laser might be a good candidate such as optical frequency transfer and metrological systems.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
