A set of semiconductor laser pulse seed sources based on an embedded chip is proposed. The greatest feature is that the optical pulse frequency and width can be independently adjusted in real time. The pulse seed sources can be switched independently and online from the gain-switched mode to the quasi-continuous wave mode to obtain optimal optical parameters for specific applications. To explore the physical mechanism of the semiconductor laser source, the rate equation that describes the carrier-photon transient change in a semiconductor laser cavity is numerically derived and solved. Subsequently, problems that need to be considered while designing the drive circuit are identified. The system evaluation indicates that the optical pulse frequency adjustment range is 250 Hz to 42 MHz, and the narrowest optical pulse output width is 80 ps. The pulse seed source can drive semiconductor lasers with different central wavelengths (1064, 1550, and 1970 nm), and can also simultaneously drive two semiconductor lasers and output dual-band optical pulses. It can be used as a seed source for general high-power optical systems, and exhibits good application value and extensive market prospects.

提出了一套基于嵌入式芯片的半导体激光脉冲种子源。最大的特点是光脉冲的频率和宽度可以实时独立调节。脉冲种子源可以独立地在线切换，从增益切换模式转换为准连续波模式，以获得针对特定应用的最佳光学参数。为了探索半导体激光源的物理机理，对描述半导体激光腔中载流子-光子瞬态变化的速率方程进行了数值推导和求解。随后，确定了在设计驱动电路时需要考虑的问题。系统评估表明，光脉冲频率调整范围为250 Hz至42 MHz，最窄的光脉冲输出宽度为80 ps。脉冲种子源可以驱动具有不同中心波长（1064、1550和1970 nm）的半导体激光器，也可以同时驱动两个半导体激光器并输出双波段光脉冲。它可以作为一般大功率光学系统的种子源，具有良好的应用价值和广阔的市场前景。