High power picosecond MOPA with anisotropic ytterbium-doped tapered double-clad fiber
Fedotov, Andrei; Noronen, Teppo; Rissanen, Joona; Gumenyuk, Regina; Petrov, Andrey; Chamorovskii, Yuri; Golant, Konstantin; Odnoblyudov, Maxim; Filippov, Valery (2018)
Fedotov, Andrei
Noronen, Teppo
Rissanen, Joona
Gumenyuk, Regina
Petrov, Andrey
Chamorovskii, Yuri
Golant, Konstantin
Odnoblyudov, Maxim
Filippov, Valery
Teoksen toimittaja(t)
Taccheo, S
Mackenzie, JI
Ferrari, M
SPIE-INT SOC OPTICAL ENGINEERING
2018
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201908211997
https://urn.fi/URN:NBN:fi:tty-201908211997
Kuvaus
Peer reviewed
Tiivistelmä
Generation of ultrashort pulses with high average power and moderately high pulse energy generally requires a mode-locked laser followed by several fiber amplifiers in a master-oscillator power-amplifier configuration. Recently, gain-switched diode lasers have emerged as a viable replacement to mode-locked oscillators as sources of sub-100 ps pulses in these systems, but the low output power available from the diodes necessitates the use of multiple costly amplifier stages. Here, we demonstrate the generation of 1.7 mu J pulses at 1030 nm, and 11.7 mu J pulses at 1064 nm from a gain-switched diode seeded compact MOPA with only two amplification stages. The final stage is a tapered fiber amplifier, whose geometry efficiently suppresses amplified spontaneous emission and allows reaching a gain of similar to 40 dB. This research work is still in progress, and further increase in pulse energy should be possible by optimizing the setup.
Kokoelmat
- TUNICRIS-julkaisut [16654]