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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 16 , 2018    10.3788/COL201816.061404


550 MHz carbon nanotube mode-locked femtosecond Cr:YAG laser
Jun Wan Kim1, Sun Young Choi2, Won Tae Kim2, Bong Joo Kang2, Won Bae Cho3, Guang-Hoon Kim1, and Fabian Rotermund2
1 Advanced Medical Device Research Division, [Korea Electrotechnology Research Institute (KERI)], Ansan 1 5588, Korea
2 Department of Physics, [Korea Advanced Institute of Science and Technology (KAIST)], Daejeon 34141, Korea
3 BioMed Research Section, [Electronics and Telecommunications Research Institute (ETRI)], Daejeon 3 4129, Korea

Chin. Opt. Lett., 2018, 16(06): pp.061404

DOI:10.3788/COL201816.061404
Topic:Lasers and laser optics
Keywords(OCIS Code): 140.4050  140.5680  140.7090  160.4236  

Abstract
We demonstrate a femtosecond Cr:YAG laser mode-locked by a carbon nanotube saturable absorber mirror (CNT-SAM) at a repetition rate of 550 MHz. By employing the CNT-SAM, which exhibits a modulation depth of 0.51% and a saturation fluence of 28 μJ/cm2 at 1.5 μm, we achieved a compact bulk Cr:YAG laser with self-starting mode-locked operation near 1.5 μm, delivering an average output power of up to 147 mW and a pulse duration of 110 fs. To our knowledge, this system provides the highest repetition rate among reported CNT-SAM mode-locked Cr:YAG lasers and the shortest pulse duration among saturable absorber mode-locked Cr:YAG lasers with repetition rates above 500 MHz.

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Received:2018/2/9
Accepted:2018/4/19
Posted online:2018/5/28

Get Citation: Jun Wan Kim, Sun Young Choi, Won Tae Kim, Bong Joo Kang, Won Bae Cho, Guang-Hoon Kim, and Fabian Rotermund, "550 MHz carbon nanotube mode-locked femtosecond Cr:YAG laser," Chin. Opt. Lett. 16(06), 061404(2018)

Note: This work was supported by the Korea Electrotechnology Research Institute Primary research program through the National Research Council of Science & Technology (NST) funded by the Ministry of Science, ICT and Future Planning (MSIP) (No. 18-12-N0101-41), the Creative Allied Project of the NST (No. CAP-15-06-ETRI), and the National Research Foundation (NRF) of Korea funded by MSIP (Nos. 2016R1A2A1A05005381 and 2017R1A4A1015426).



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