Improvement of Output Characteristics of Dual-Loss-Modulated Laser with Heterostructure Saturable Absorber at 1.3 μm.
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| Title: | Improvement of Output Characteristics of Dual-Loss-Modulated Laser with Heterostructure Saturable Absorber at 1.3 μm. |
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| Authors: | Zhang, Gang1 (AUTHOR) zhanggang@upc.edu.cn, Yang, Lanying1 (AUTHOR), Wang, Wenning1 (AUTHOR), Weng, Jie1 (AUTHOR), Bai, Fen1 (AUTHOR), Jiao, Zhiyong1 (AUTHOR) |
| Source: | Materials (1996-1944). Jun2026, Vol. 19 Issue 11, p2283. 12p. |
| Subjects: | Q-switched lasers, Optical modulators, Molybdenum disulfide, Lasers |
| Abstract: | Dual-loss-modulated Q-switched lasers at 1.3 μm are achieved by using both electro-optic modulators (EOMs) and different saturable absorbers (SAs). Laser pulses with a width of 7.75 ns at 60 kHz and a peak power of 4.07 kW at 20 kHz can be obtained in lasers with both an EOM and a MoS2/WS2 heterostructure SA. Compared with those generated in lasers with a MoS2 SA under the same repetition rates, the pulse width is compressed by 37.7% (at 60 kHz), and the peak power is increased by 80.9% (at 20 kHz). The results show that dual-loss-modulated technology makes it easier to achieve pulses with a duration of several nanoseconds. Meanwhile, compared to single-material SAs, the heterostructure SA helps to generate pulses with a short duration and high peak power in 1.3 μm lasers. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Dual-loss-modulated Q-switched lasers at 1.3 μm are achieved by using both electro-optic modulators (EOMs) and different saturable absorbers (SAs). Laser pulses with a width of 7.75 ns at 60 kHz and a peak power of 4.07 kW at 20 kHz can be obtained in lasers with both an EOM and a MoS2/WS2 heterostructure SA. Compared with those generated in lasers with a MoS2 SA under the same repetition rates, the pulse width is compressed by 37.7% (at 60 kHz), and the peak power is increased by 80.9% (at 20 kHz). The results show that dual-loss-modulated technology makes it easier to achieve pulses with a duration of several nanoseconds. Meanwhile, compared to single-material SAs, the heterostructure SA helps to generate pulses with a short duration and high peak power in 1.3 μm lasers. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19961944 |
| DOI: | 10.3390/ma19112283 |
