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Microchip lasers

机译：微芯片激光器

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摘要

Microchip lasers are miniature diode-pumped solid-state devices formed by dielectrically coating thin platelets of gain media. Their simplicity and small size give them the potential for inexpensive mass production, while their cw output characteristics are comparable to those of the best conventional devices. By incorporating a thin platelet of a second material into the device, tunable cw lasers and picosecond Q-switched microchip lasers have been produced which outperform larger devices in many aspects. Electrooptically tuned devices have demonstrated a flat-band tuning response of l5 MHz/V at modulation rates from dc to l.3 GHz. Pulses as short as ll5 ps, with peak powers of 80 kW, have been generated by electrooptically Q-switched microchip lasers, and pulse repetition rates as high as 2.25 MHz have been demonstrated. Passively Q-switched devices generate pulses as short as 2l8 ps and produce peak powers in excess of 130 kW, without the need for switching electronics. A variety of miniature nonlinear optical devices, including harmonic generators, parametric amplifiers, parametric oscillators, and fiber-based Raman amplifiers, have been used to frequency convert the output of these lasers, accessing the entire spectrum from 5 μm to l90 nm in extremely compact optical systems.
机译：Microchip激光器是微型二极管泵浦式固态器件，通过对增益介质的薄片进行介电涂层形成。它们的简单性和小巧的尺寸使其有可能进行廉价的批量生产，而其连续波输出特性可与最佳传统设备相媲美。通过将薄薄的第二种材料薄片集成到设备中，已生产出可调谐的连续激光器和皮秒调Q微芯片激光器，它们在许多方面都优于大型设备。电光调谐设备在从DC到1.3 GHz的调制速率下已显示出15 MHz / V的平带调谐响应。电光调Q微芯片激光器产生的脉冲短至115 ps，峰值功率为80 kW，并且脉冲重复率高达2.25 MHz。无源调Q开关器件可产生短至2l8 ps的脉冲，并产生超过130 kW的峰值功率，而无需开关电子设备。各种微型非线性光学器件，包括谐波发生器，参数放大器，参数振荡器和基于光纤的拉曼放大器，已被用于对这些激光器的输出进行频率转换，以极其紧凑的方式访问从5μm到90 nm的整个光谱光学系统。

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