Quanwei Jiang, Lanping Zhang, Linhui Guo, Hao Tan, Hualing Wu, Bo Fu, Nisha Zhang, Fengqun Zhang, Weichuan Du, Deyong Wu, Songxin Gao. Optical Compensation Method for Pigtail Module in High-Brightness Laser Diodes[J]. Chinese Journal of Lasers, 2021, 48(11): 1101003
- Chinese Journal of Lasers
- Vol. 48, Issue 11, 1101003 (2021)
Fig. 1. Diagram of single LD chip package
Fig. 2. Curves of power and voltage of single cos chip
Fig. 3. Curves of divergence angle and wavelength distribution of single cos chip. (a) Curve of divergence angle; (b) wavelength distribution curve
Fig. 4. Diagrams of slow axis collimation mirrors. (a) Ideal collimation mirror; (b) tilt collimation mirror
Fig. 5. Diagram of pigtail module based on 7 steps
Fig. 6. Physical picture of slow axis collimation mirror
Fig. 7. Physical pictures of module. (a) Debug diagram of single chip; (b) debug diagram of multiple single chip
Fig. 8. Measured spots of near and far fields. Spot distributions of (a) near field and (b) far field without slow axis collimation mirror; Spot distributions of (c) near field and (d) far field with slow axis collimation mirror
Fig. 9. Measured results of pointing error before and after correlation
Fig. 10. Optical designs of LD module. (a) Ray tracing; (b) fiber coupling with large pointing error; (c) spot filled fibers for small and large pointing errors
Fig. 11. Measured curves of power and efficiency of LD module with tail fiber output
|
Table 1. Parameter list of single cos chip
|
Table 2. Measured thickness difference of slow axis collimation mirror
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20