Frequency-Modulated Pulse-Amplification Method for Reducing Pulse Shape Distortion
| Autor: | Tae Jun Yu, Jihoon Jeong, Seungjin Hwang, Seryeyohan Cho |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Amplifier Process (computing) General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Pulse shaping Pulse (physics) law.invention 010309 optics Optics law Distortion 0103 physical sciences Temporal contrast 0210 nano-technology business Frequency modulation |
| Zdroj: | Journal of the Korean Physical Society. 73:1637-1643 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.73.1637 |
| Popis: | To reduce the laser pulse shape distortion accompanying the amplification process and achieve an intended output pulse shape in the Nd:YAG amplifier chain, we propose a frequency-modulated pulse-amplification method. Assuming carrier-frequency-modulated seed pulses, we numerically simulate the pulse amplification in an Nd:YAG amplifier chain where severe distortion occurs. For the calculation, we develop a modified Frantz-Nodvik equation, which enables two inputs with different carrier frequencies. The simulation results indicate that the temporal contrast of the seed pulse needed to obtain a flat output pulse shape is reduced by 16 - 25 dB when frequency modulation is applied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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