Understanding low-threshold mode-locking at multi-GHz repetition rate
Abstract Continuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory. The authors reveal that dynamic gain depletion and recovery between consecutive round-trips is the key facto...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2025-01-01
|
| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-024-01682-0 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841559079425671168 |
|---|---|
| author | Wenbin He Meng Pang Philip St. J. Russell |
| author_facet | Wenbin He Meng Pang Philip St. J. Russell |
| author_sort | Wenbin He |
| collection | DOAJ |
| description | Abstract Continuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory. The authors reveal that dynamic gain depletion and recovery between consecutive round-trips is the key factor behind a low-pulse-energy transition from Q-switched mode-locking (QSML) to continuous-wave mode-locking (CWML). As well as providing new insight into gain dynamics, the results suggest a practical route to low-threshold lasing at very high-repetition rates. |
| format | Article |
| id | doaj-art-8ddb4bcfb20a420b9a90cf1f12de30ca |
| institution | Kabale University |
| issn | 2047-7538 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj-art-8ddb4bcfb20a420b9a90cf1f12de30ca2025-01-05T12:46:45ZengNature Publishing GroupLight: Science & Applications2047-75382025-01-011411210.1038/s41377-024-01682-0Understanding low-threshold mode-locking at multi-GHz repetition rateWenbin He0Meng Pang1Philip St. J. Russell2Russell Centre for Advanced Lightwave Science, Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics, Chinese Academy of SciencesRussell Centre for Advanced Lightwave Science, Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics, Chinese Academy of SciencesRussell Centre for Advanced Lightwave Science, Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics, Chinese Academy of SciencesAbstract Continuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory. The authors reveal that dynamic gain depletion and recovery between consecutive round-trips is the key factor behind a low-pulse-energy transition from Q-switched mode-locking (QSML) to continuous-wave mode-locking (CWML). As well as providing new insight into gain dynamics, the results suggest a practical route to low-threshold lasing at very high-repetition rates.https://doi.org/10.1038/s41377-024-01682-0 |
| spellingShingle | Wenbin He Meng Pang Philip St. J. Russell Understanding low-threshold mode-locking at multi-GHz repetition rate Light: Science & Applications |
| title | Understanding low-threshold mode-locking at multi-GHz repetition rate |
| title_full | Understanding low-threshold mode-locking at multi-GHz repetition rate |
| title_fullStr | Understanding low-threshold mode-locking at multi-GHz repetition rate |
| title_full_unstemmed | Understanding low-threshold mode-locking at multi-GHz repetition rate |
| title_short | Understanding low-threshold mode-locking at multi-GHz repetition rate |
| title_sort | understanding low threshold mode locking at multi ghz repetition rate |
| url | https://doi.org/10.1038/s41377-024-01682-0 |
| work_keys_str_mv | AT wenbinhe understandinglowthresholdmodelockingatmultighzrepetitionrate AT mengpang understandinglowthresholdmodelockingatmultighzrepetitionrate AT philipstjrussell understandinglowthresholdmodelockingatmultighzrepetitionrate |