Multi-cavity-stabilized ultrastable laser

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2018,（12）
• 页码范围: 45-50
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL201816.121403

摘要

We demonstrate a proposal for making an ultrastable laser referenced to a multi-cavity,enabling a lower thermal noise limit due to the averaging effect.In comparison with a single-cavity system,relative frequency instability of the synthesized laser can be improved by a factor of the square root of the cavity number.We perform an experiment to simulate a two-cavity system with two independent ultrastable lasers.Experimental results show that the relative frequency instability (Allan deviation) of the synthesized laser is 5 × 10-16,improved by a factor of √2 from a single-cavity-stabilized laser.