Abstract A widely tunable distributed feedback Bragg (DFB) laser diode based on surface isolation grooves has been produced by i-line lithography. Periodic p-electrodes on the mesas realize a single longitudinal mode output. The maximum continuous wave output power of the uncoated device was 145.3 mW/facet at 500 mA, and the maximum side-mode suppression ratio was over 37 dB. Experimentally, the laser diode could be tuned from 899.9 to 907.7 nm from 15 ∘ C to 35 ∘ C . The 3 dB linewidth was 920 MHz at 20 ∘ C for an injected current of 300 mA. The method of fabricating the tunable DFB laser diode has great potential for many applications, such as in light detection and ranging (LiDAR) devices.

中文翻译：

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基于工作在 905nm 的高阶表面隔离槽的可调谐 DFB 激光二极管

摘要 采用i-line光刻技术制备了一种基于表面隔离槽的宽可调分布反馈布拉格(DFB)激光二极管。台面上的周期性 p 电极实现了单纵模输出。无涂层器件的最大连续波输出功率在 500 mA 时为 145.3 mW/facet，最大边模抑制比超过 37 dB。实验上，激光二极管可以从 899.9 nm 调谐到 907.7 nm，从 15 ∘ C 到 35 ∘ C 。对于 300 mA 的注入电流，3 dB 线宽在 20 ∘ C 时为 920 MHz。制造可调谐 DFB 激光二极管的方法在许多应用中具有巨大的潜力，例如在光检测和测距 (LiDAR) 设备中。