Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspection. The recent progress of FOH is introduced from five aspects, including large-scale FOH array, very-low-frequency detection, fiber-optic vector hydrophone (FOVH), towed linear array, and deep-sea and long-haul transmission. The above five aspects indicate the future development trends in the FOH research field, and they also provide a guideline for the practical applications of FOH as well as its array.

中文翻译：

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光纤水听器的最新进展

光纤水听器（FOH）是一种重要的声学传感器，可以用于军事和民用领域，例如水下目标检测，石油和天然气勘探以及地震检查。从大规模FOH阵列，超低频检测，光纤矢量水听器（FOVH），拖曳线性阵列以及深海和远距离传输等五个方面介绍了FOH的最新进展。以上五个方面说明了FOH研究领域的未来发展趋势，也为FOH及其阵列的实际应用提供了指导。