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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.
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]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Improvement of Output Characteristics of Dual-Loss-Modulated Laser with Heterostructure Saturable Absorber at 1.3 μm.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Gang%22">Zhang, Gang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhanggang@upc.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Lanying%22">Yang, Lanying</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Wenning%22">Wang, Wenning</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weng%2C+Jie%22">Weng, Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bai%2C+Fen%22">Bai, Fen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiao%2C+Zhiyong%22">Jiao, Zhiyong</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Jun2026, Vol. 19 Issue 11, p2283. 12p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Q-switched+lasers%22">Q-switched lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+modulators%22">Optical modulators</searchLink><br /><searchLink fieldCode="DE" term="%22Molybdenum+disulfide%22">Molybdenum disulfide</searchLink><br /><searchLink fieldCode="DE" term="%22Lasers%22">Lasers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/ma19112283
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Q-switched lasers
        Type: general
      – SubjectFull: Optical modulators
        Type: general
      – SubjectFull: Molybdenum disulfide
        Type: general
      – SubjectFull: Lasers
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      – TitleFull: Improvement of Output Characteristics of Dual-Loss-Modulated Laser with Heterostructure Saturable Absorber at 1.3 μm.
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              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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