Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun
In this work, aiming at the master oscillator of the photoelectron gun with a variable repetition rate of electron bunches, a picosecond solid-state laser subject to delayed optoelectronic feedback and RF loss modulation is studied. Loss modulation is performed using an electro-optical modulator wit...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/2/106 |
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| author | Mikhail V. Gorbunkov Yulia Y. Maslova Yurii V. Shabalin Vladimir G. Tunkin |
| author_facet | Mikhail V. Gorbunkov Yulia Y. Maslova Yurii V. Shabalin Vladimir G. Tunkin |
| author_sort | Mikhail V. Gorbunkov |
| collection | DOAJ |
| description | In this work, aiming at the master oscillator of the photoelectron gun with a variable repetition rate of electron bunches, a picosecond solid-state laser subject to delayed optoelectronic feedback and RF loss modulation is studied. Loss modulation is performed using an electro-optical modulator with zero bias at the second accelerator frequency subharmonic. Optoelectronic negative feedback uses an intracavity electro-optical modulator and a fast high-voltage photodiode mounted as close as possible to the modulator crystal. An analytical formula is obtained for the pulse duration, and estimates are given for Nd and Yb based media and L, S, C and X-band used in modern linear accelerators. Numerical simulation proves that the control is suitable for pulse-repetitive operation. The proposed approach solves the problem of laser pulse shortening and locking the master oscillator, and therefore, electron bunches in photoelectron guns, to the high-stable RF generator controlling accelerator functioning. |
| first_indexed | 2024-03-09T21:13:06Z |
| format | Article |
| id | doaj.art-88ca9530772a4c91afdb05424cc52f1c |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T21:13:06Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-88ca9530772a4c91afdb05424cc52f1c2023-11-23T21:41:35ZengMDPI AGPhotonics2304-67322022-02-019210610.3390/photonics9020106Variable Repetition Rate Picosecond Master Oscillator for Photoelectron GunMikhail V. Gorbunkov0Yulia Y. Maslova1Yurii V. Shabalin2Vladimir G. Tunkin3Department of Quantum Radiophysics, P.N. Lebedev Physics Insitute, Leninskii pr. 53, 119991 Moscow, RussiaDepartment of Quantum Radiophysics, P.N. Lebedev Physics Insitute, Leninskii pr. 53, 119991 Moscow, RussiaDepartment of Quantum Radiophysics, P.N. Lebedev Physics Insitute, Leninskii pr. 53, 119991 Moscow, RussiaInternational Laser Center, Lomonosov Moscow State University, Leninskie Gori 1, 119991 Moscow, RussiaIn this work, aiming at the master oscillator of the photoelectron gun with a variable repetition rate of electron bunches, a picosecond solid-state laser subject to delayed optoelectronic feedback and RF loss modulation is studied. Loss modulation is performed using an electro-optical modulator with zero bias at the second accelerator frequency subharmonic. Optoelectronic negative feedback uses an intracavity electro-optical modulator and a fast high-voltage photodiode mounted as close as possible to the modulator crystal. An analytical formula is obtained for the pulse duration, and estimates are given for Nd and Yb based media and L, S, C and X-band used in modern linear accelerators. Numerical simulation proves that the control is suitable for pulse-repetitive operation. The proposed approach solves the problem of laser pulse shortening and locking the master oscillator, and therefore, electron bunches in photoelectron guns, to the high-stable RF generator controlling accelerator functioning.https://www.mdpi.com/2304-6732/9/2/106solid state picosecond lasersnegative optoelectronic feedbackelectrooptic modulationphotoinjectors |
| spellingShingle | Mikhail V. Gorbunkov Yulia Y. Maslova Yurii V. Shabalin Vladimir G. Tunkin Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun Photonics solid state picosecond lasers negative optoelectronic feedback electrooptic modulation photoinjectors |
| title | Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun |
| title_full | Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun |
| title_fullStr | Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun |
| title_full_unstemmed | Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun |
| title_short | Variable Repetition Rate Picosecond Master Oscillator for Photoelectron Gun |
| title_sort | variable repetition rate picosecond master oscillator for photoelectron gun |
| topic | solid state picosecond lasers negative optoelectronic feedback electrooptic modulation photoinjectors |
| url | https://www.mdpi.com/2304-6732/9/2/106 |
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