| Autor: |
Mathieu Boivin, Louis Desbiens, Pierre Laperle, Claude Pare, Bruno Labranche, Yves Taillon, Vincent Roy |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Fiber Lasers XV: Technology and Systems. |
| DOI: |
10.1117/12.2290104 |
| Popis: |
Nonlinear compression for generation of high energy ultrashort pulses using an Yb-doped large mode area tapered fiber is reported. Single-stage amplifier gain larger than 43 dB is achieved, with energy of seed pulses (35 ps, 200 kHz) boosted up to 50 μJ at the amplifier output. Spectral broadening induced by self-phase modulation is shown to take place advantageously along the larger end of the counter-pumped active tapered fiber, where the mode area scales beyond 1000 μm 2 . Pulse durations as short as 1 ps and peak powers exceeding 16 MW are demonstrated thereafter using a chirped volume Bragg grating as a dispersive compressor. Efficient suppression of higher-order modes in the large mode area tapered fiber yields diffraction-limited output (M 2 < 1.2) for optimal pulse compression. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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