InP Quantum Dot Mode-Locked Laser Data

InP QD materials were processed into gain-guided multi-segment contact devices for optical modal gain and modal absorption measurements, and also narrow ridge two-section FP lasers for mode-locking measurements. All numerical data are included in a folder called “InP QD mode-locked laser dataset”, which contains 5 sub-folders called fig.2, fig.3, fig.4, fig.5 and fig.6, which are the experimental data shown in each corresponding figure. In folder fig.2, all data files are two-column .DAT type of optical gain and absorption measurements of gain-guided multi-segment contact devices, plotting in Figure 2 in the paper. Each file includes wavelength (left column, unit in nm) vs. optical gain and/or absorption (right column, arbitrary unit). The file with the name of “10mA”, “20mA”, …,”150mA” indicates the pumping current applied in each section for gain measurement. The file with the name of “Abs” corresponds to the absorption measurement results. In folder fig.3, all data files are three-column .TXT type of Current-Voltage (I-V) measurements of a narrow ridge mode-locked laser (MLL), plotting in Figure 3 in the paper. The MLL consists of two sections which is called gain section and saturable absorber (SA) section. Each file includes current (left column, unit in A), voltage (middle column, unit in V), and average optical power (right column, unit in W). Only the data in the left and middle columns were used to generate the I-V curves of MLL when operated in different conditions. The file with the name of “All forward” is the I-V data of the MLL measured with both two sections forward biased. The file with the name “SA 0v”, “SA 1v”, “SA 2v”, “SA 3v”, and “SA floating” corresponds to the I-V data of the MLL measured with the gain section forward biased, but SA section was applied reverse bias at 0v (grounded), 1v, 2v, 3v, and floating (open circuit), respectively. In folder fig.4, one data file with the name of “H3 80 mA 2.74 V” is three-column .DAT type of optical pulse-width measurement by using an autocorrelator. This file includes time (left column, unit in ps) vs. optical signal intensity (middle column, arbitrary unit), and a Sech2 fit of optical signal intensity shown in the right column with arbitrary unit. Two data files with the name of “H3 80.0 mA 2.74 V 9.7 Degrees RFA Trace (12.55 GHz Centre 10 MHz Span)” and “H3 80.0 mA 2.74 V 9.7 Degrees RFA Trace (13.25 GHz Centre 26.5 GHz Span)” are two-column .CSV type of repetition frequency measurement by using a fast photodetector and a RF spectrometer. Each of these files includes repetition frequency (left column, unit in Hz) vs. signal intensity (right column, unit in dB). The file name reveals the measurement parameters set in the RF spectrometer, which is scanning centre at 12.55GHz, scanning span of 10MHz and scanning centre at 13.25GHz, scanning span of 26.5GHz, respectively. The last data file with the name “lasing spectra” is two-column .CSV type of lasing spectrum measurement by using an optical spectrometer. This file includes wavelength (left column, unit in nm) vs. light intensity (right column, unit in dBm). Pulse-width, repetition frequency and lasing spectrum were taken at the same time under the driving condition of 80mA forward current applied to the gain section and 2.74V reverse bias applied to the SA section. In folder fig.5, six data files are three-column .DAT type of optical pulse-width measurement by using an autocorrelator. This file includes time (left column, unit in ps) vs. optical signal intensity (middle column, arbitrary unit), and a Sech2 fit of optical signal intensity shown in the right column with arbitrary unit. The file name “1.06 V AC Trace”, “1.41 V AC Trace”, “1.76 V AC Trace”, “2.16 V AC Trace”, “2.46 V AC Trace”, “2.74 V AC Trace” indicates pulse-width was measured with a SA reverse bias at 1.06V, 1.41V, 1.76V, 2.16V, 2.46V and 2.74V respectively, and the gain current was fixed to 80mA. The corresponding lasing spectrum data is shown in the file with the name “W0002”, “W0003”, “W0004”, “W0006”, “W0007” and “W0008”. These files are two-column .CSV type of lasing spectrum measurement by using an optical spectrometer. This file includes wavelength (left column, unit in nm) vs. light intensity (right column, unit in dBm). TBP value is the product of the pulsed-width and the 3dB bandwidth of lasing spectrum. In folder fig.6, three data files are three-column .DAT type of optical pulse-width measurement by using an autocorrelator. This file includes time (left column, unit in ps) vs. optical signal intensity (middle column, arbitrary unit), and a Sech2 fit of optical signal intensity shown in the right column with arbitrary unit. The file name “75mA AC Trace”, “80mA AC Trace” and “85mA AC Trace” indicates pulse-width was measured with a gain current at 75mA, 80mA and 85mA respectively, and the SA reverse bias was fixed to 1.85V. The corresponding lasing spectrum data is shown in the file with the name “75mA”, “80mA” and “85mA”. These files are two-column .CSV type of lasing spectrum measurement by using an optical spectrometer. This file includes wavelength (left column, unit in nm) vs. light intensity (right column, unit in dBm). TBP value is the product of pulsed-width and 3dB bandwidth of lasing spectrum.

磷化铟量子点（InP QD）材料被制备为增益导引多段接触器件，用于光学模式增益与模式吸收测量；同时被制备为窄脊波导两段法布里-珀罗（FP）激光器，用于锁模测量。所有数值数据均收纳于名为"InP QD锁模激光器数据集"的文件夹中，该文件夹包含5个子文件夹，分别为"fig.2"、"fig.3"、"fig.4"、"fig.5"和"fig.6"，对应论文中各对应附图的实验数据。
在"fig.2"文件夹中，所有数据文件均为两列.DAT格式，对应增益导引多段接触器件的光增益与吸收测量结果，即论文中的图2。每个文件包含两列数据：左列为波长（单位：nm），右列为光增益和/或吸收（任意单位）。文件名为"10mA"、"20mA"……"150mA"的文件，代表各段施加的对应泵浦电流，用于增益测量；文件名为"Abs"的文件对应吸收测量结果。
在"fig.3"文件夹中，所有数据文件均为三列.TXT格式，对应窄脊波导锁模激光器（mode-locked laser, MLL）的电流-电压（I-V）测量结果，即论文中的图3。该MLL包含增益段与可饱和吸收体（saturable absorber, SA）段两个功能区域。每个文件包含三列数据：左列为电流（单位：A），中列为电压（单位：V），右列为平均光功率（单位：W）。仅左、中列数据被用于生成不同工作条件下MLL的I-V曲线。文件名为"All forward"的文件，为两段均正向偏置时测得的MLL的I-V数据；文件名为"SA 0v"、"SA 1v"、"SA 2v"、"SA 3v"、"SA floating"的文件，分别对应增益段正向偏置、SA段分别施加0V（接地）、1V、2V、3V反向偏置以及开路浮空时测得的MLL的I-V数据。
在"fig.4"文件夹中，文件名为"H3 80 mA 2.74 V"的文件为三列.DAT格式，是使用自相关仪（autocorrelator）测得的光脉冲宽度数据。该文件包含三列数据：左列为时间（单位：ps），中列为光信号强度（任意单位），右列为光信号强度的Sech²拟合曲线（任意单位）。另有两个文件名为"H3 80.0 mA 2.74 V 9.7 Degrees RFA Trace (12.55 GHz Centre 10 MHz Span)"与"H3 80.0 mA 2.74 V 9.7 Degrees RFA Trace (13.25 GHz Centre 26.5 GHz Span)"的文件，均为两列.CSV格式，是使用快速光电探测器与射频频谱仪（RF spectrometer）测得的重复频率测量数据。每个文件包含两列数据：左列为重复频率（单位：Hz），右列为信号强度（单位：dB）。文件名标注了射频频谱仪的测量参数：分别以12.55GHz为扫描中心、扫描跨度10MHz，以及以13.25GHz为扫描中心、扫描跨度26.5GHz。最后一个文件名为"lasing spectra"的文件，为两列.CSV格式的激光光谱测量数据，由光谱仪测得，左列为波长（单位：nm），右列为光强（单位：dBm）。脉冲宽度、重复频率与激光光谱在相同驱动条件下采集：增益段施加80mA正向电流，SA段施加2.74V反向偏置。
在"fig.5"文件夹中，六个数据文件均为三列.DAT格式，是使用自相关仪测得的光脉冲宽度数据，格式与"fig.4"中的脉冲测量文件一致。文件名为"1.06 V AC Trace"、"1.41 V AC Trace"、"1.76 V AC Trace"、"2.16 V AC Trace"、"2.46 V AC Trace"、"2.74 V AC Trace"的文件，分别对应SA段施加1.06V、1.41V、1.76V、2.16V、2.46V、2.74V反向偏置，且增益电流固定为80mA时的脉冲宽度测量数据。对应的激光光谱数据分别存储于文件"W0002"、"W0003"、"W0004"、"W0006"、"W0007"、"W0008"，均为两列.CSV格式，格式与"fig.4"中的"lasing spectra"文件一致。时间带宽积（Time-Bandwidth Product, TBP）为脉冲宽度与激光光谱3dB带宽的乘积。
在"fig.6"文件夹中，三个数据文件均为三列.DAT格式，是使用自相关仪测得的光脉冲宽度数据，格式与前述脉冲测量文件一致。文件名为"75mA AC Trace"、"80mA AC Trace"、"85mA AC Trace"的文件，分别对应增益电流为75mA、80mA、85mA，且SA段反向偏置固定为1.85V时的脉冲宽度测量数据。对应的激光光谱数据分别存储于文件"75mA"、"80mA"、"85mA"，格式与前述激光光谱文件一致。时间带宽积（TBP）为脉冲宽度与激光光谱3dB带宽的乘积。