中国激光, 2020, 47 (12): 1206004, 网络出版: 2020-11-17
调制光栅Y分支激光器准连续调谐特性 
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Quasi-Continuous Tuning Characteristics of Modulated Grating Y-Branch Lasers
图 & 表
图 1. MG-Y型可调谐激光器的结构和调谐原理。(a) 结构示意图; (b)游标调谐原理
Fig. 1. Structure and tuning principle of MG-Y tunable laser. (a) Diagram of structure; (b) vernier tuning principle
图 4. 覆盖40 nm 波长调谐范围的IRR和ILR的调谐路径。(a)输出波长与IRR和ILR的关系图;(b) 0.4 nm 波长间隔的左、右光栅反射区电流调谐路径
Fig. 4. Tuning paths of IRR and ILR covering wavelength range of 40 nm. (a) Relationship among output wavelength, IRR, and ILR; (b) current tuning paths of IRR and ILR with 0.4 nm wavelength interval
图 5. 路径1的样条插值。(a)波长插值生成IRR数组;(b) IRR 插值产生ILR 数组
Fig. 5. Spline interpolation of path 1. (a) Generating IRR array through wavelength interpolation; (b) generating ILR array through IRR interpolation
图 6. 基于样条插值的目标波长检索。(a)相位区电流调谐特性;(b)线性调谐段的去重和拼接;(c)基于样条插值进行目标波长检索;(d) 8 pm波长间隔的路径1的电流调谐曲线
Fig. 6. Target wavelength retrieval based on spline interpolation. (a) Tuning characteristics of current in phase region; (b) deduplication and stitching of linear tuning sections; (c) target wavelength retrieval by spline interpolation; (d) current tuning curves of path 1 with 8 pm wavelength interval
图 7. 激光器输出功率校准。(a) ISOA 固定为100.76 mA时的激光器输出功率曲线;(b) ISOA 调谐特性;(c)校准后的功率曲线;(d)全C波段电流调谐曲线
Fig. 7. Calibration of output power of laser. (a) Output power curve of laser when ISOA is fixed at 100.76 mA; (b) tuning characteristic of ISOA; (c) calibrated output power; (d) full C-band current tuning curves
图 8. 基于MG-Y激光器的光纤EFPI解调系统示意图
Fig. 8. Diagram of fiber-optic EFPI demodulation system based on MG-Y laser
刘强, 荆振国, 李昂, 黄致远, 彭伟. 调制光栅Y分支激光器准连续调谐特性[J]. 中国激光, 2020, 47(12): 1206004. Liu Qiang, Jing Zhenguo, Li Ang, Huang Zhiyuan, Peng Wei. Quasi-Continuous Tuning Characteristics of Modulated Grating Y-Branch Lasers[J]. Chinese Journal of Lasers, 2020, 47(12): 1206004.
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