论文标题
开放式纤维Fabry-Pérot微腔的激光书面镜子轮廓
Laser written mirror profiles for open-access fiber Fabry-Pérot microcavities
论文作者
论文摘要
我们展示了在光纤末端产生的激光写入凹形半球形结构，这些纤维是可调开放式微腔的镜子基板。我们实现了高达250的精细值，并且在整个稳定范围内的性能大多是恒定的。这种使空腔操作还可以接近稳定性限制，其中达到$ 1.5 \ times 10^4 $的峰值质量系数。加上$ 2.3 \的小模式腰部； \ Mathrm {μm} $，腔体达到$ C \ sim 2.5 $的percell系数，这对于需要良好的横向光学访问或以其他方式对镜子进行大分离的实验很有用。激光写的镜像可以在形状和各种表面上具有巨大的灵活性产生，从而为微腔打开了新的可能性。
We demonstrate laser-written concave hemispherical structures produced on the endfacets of optical fibers that serve as mirror substrates for tunable open-access microcavities. We achieve finesse values of up to 250, and a mostly constant performance across the entire stability range. This enables cavity operation also close to the stability limit, where a peak quality factor of $1.5\times 10^4$ is reached. Together with a small mode waist of $2.3\; \mathrm{μm}$, the cavity achieves a Purcell factor of $C \sim 2.5$, which is useful for experiments that require good lateral optical access or otherwise large separation of the mirrors. Laser-written mirror profiles can be produced with a tremendous flexibility in shape and on various surfaces, opening new possibilities for microcavities.
