Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques
Multiple pulsing occurs in most ultrashort-pulse laser systems when pumped at excessively high powers, and small fluctuations in pump power in certain regimes can cause unusual variations in the temporal separations of sub-pulses. Unfortunately, the ability of modern intensity-and-phase pulse measur...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-12-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/7/1/40 |
| _version_ | 1811335188904411136 |
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| author | Michelle Rhodes Zhe Guang Rick Trebino |
| author_facet | Michelle Rhodes Zhe Guang Rick Trebino |
| author_sort | Michelle Rhodes |
| collection | DOAJ |
| description | Multiple pulsing occurs in most ultrashort-pulse laser systems when pumped at excessively high powers, and small fluctuations in pump power in certain regimes can cause unusual variations in the temporal separations of sub-pulses. Unfortunately, the ability of modern intensity-and-phase pulse measurement techniques to measure such unstable multi-pulsing has not been studied. Here we report calculations and simulations finding that allowing variations in just the relative phase of a satellite pulse causes the second pulse to completely disappear from a spectral interferometry for direct electric field reconstruction (SPIDER) measurement. We find that, although neither frequency-resolved optical gating (FROG) nor autocorrelation can determine the precise properties of satellite pulses due to the presence of instability, they always succeed in, at least, seeing the satellite pulses. Also, additional post-processing of the measured FROG trace can determine the correct approximate relative height of the satellite pulse and definitively indicate the presence of unstable multiple-pulsing. |
| first_indexed | 2024-04-13T17:20:28Z |
| format | Article |
| id | doaj.art-70477083483241938d0f91cf06a33c36 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-13T17:20:28Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-70477083483241938d0f91cf06a33c362022-12-22T02:38:00ZengMDPI AGApplied Sciences2076-34172016-12-01714010.3390/app7010040app7010040Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement TechniquesMichelle Rhodes0Zhe Guang1Rick Trebino2School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, GA 30332, USASchool of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, GA 30332, USASchool of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, GA 30332, USAMultiple pulsing occurs in most ultrashort-pulse laser systems when pumped at excessively high powers, and small fluctuations in pump power in certain regimes can cause unusual variations in the temporal separations of sub-pulses. Unfortunately, the ability of modern intensity-and-phase pulse measurement techniques to measure such unstable multi-pulsing has not been studied. Here we report calculations and simulations finding that allowing variations in just the relative phase of a satellite pulse causes the second pulse to completely disappear from a spectral interferometry for direct electric field reconstruction (SPIDER) measurement. We find that, although neither frequency-resolved optical gating (FROG) nor autocorrelation can determine the precise properties of satellite pulses due to the presence of instability, they always succeed in, at least, seeing the satellite pulses. Also, additional post-processing of the measured FROG trace can determine the correct approximate relative height of the satellite pulse and definitively indicate the presence of unstable multiple-pulsing.http://www.mdpi.com/2076-3417/7/1/40ultrafast opticsultrashort pulse measurement |
| spellingShingle | Michelle Rhodes Zhe Guang Rick Trebino Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques Applied Sciences ultrafast optics ultrashort pulse measurement |
| title | Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques |
| title_full | Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques |
| title_fullStr | Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques |
| title_full_unstemmed | Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques |
| title_short | Unstable and Multiple Pulsing Can Be Invisible to Ultrashort Pulse Measurement Techniques |
| title_sort | unstable and multiple pulsing can be invisible to ultrashort pulse measurement techniques |
| topic | ultrafast optics ultrashort pulse measurement |
| url | http://www.mdpi.com/2076-3417/7/1/40 |
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