Numerical simulation of long-wave infrared generation using an external cavity diamond Raman laser

Hui Chen, Zhenxu Bai*, Chen Zhao, Xuezong Yang, Jie Ding, Yaoyao Qi, Yulei Wang, Zhiwei Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
84 Downloads (Pure)


Diamond has a broad spectral transmission range (>0.2 μm) and the largest Raman frequency shift (1,332 cm−1) among known Raman crystals. Hence, the diamond Raman laser has the potential to achieve lasing in the long-wave infrared (LWIR) range, which is difficult to reach via other crystalline lasers. Here, we report a new approach to achieve LWIR output using diamond Raman conversion and provide the corresponding analysis model and simulation results. The conversion efficiency is analyzed as function of the pump waist size, output-coupler transmission, and crystal length, at constant pump power. The maximum output power at which a diamond of relatively large size can be operated without damage is predicted. This study paves a way for high-power LWIR lasing in diamond.

Original languageEnglish
Article number671559
Pages (from-to)1-6
Number of pages6
JournalFrontiers in Physics
Publication statusPublished - 5 Jul 2021

Bibliographical note

Copyright © 2021 Chen, Bai, Zhao, Yang, Ding, Qi, Wang and Lu. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


  • diamond
  • external cavity
  • long-wave infrared
  • numerical simulation
  • Raman laser


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