Article
Instruments & Instrumentation
Zhenhao Wang, Shukai Zheng, Fanlong Dong, Jiachen Wang, Linpeng Yu, Xing Luo, Peiguang Yan, Jinzhang Wang, Qitao Lue, Chunyu Guo, Shuangchen Ruan
Summary: This study demonstrates the successful realization of a synchronously pumped mode-locked ytterbium-doped fiber laser and investigates the mechanism of this mode-locking technique. The laser exhibits high performance and environmental stability, providing a potential strategy for achieving high-performance ultrafast fiber sources in spectral regions without efficient modulators or saturable absorbers.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Optics
Jinhwa Gene, Dong-Il Yeom, Seung Kwan Kim, Sun Do Lim
Summary: The study introduces a high-energy, low-frequency 2-micron femtosecond fiber laser designed for laser surgery and vehicle laser detection and ranging applications. The laser, incorporating thulium-doped fiber gains and hybrid mode-locking techniques, achieved the highest pulse energy and lowest pulse rate reported to date, with pulse duration and output optical spectrum characteristics also evaluated for stability over extended periods.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Jiaqiang Lin, Zhipeng Dong, Tianhao Dong, Xuexiao Ma, Chuansheng Dai, Peijun Yao, Chun Gu, Lixin Xu
Summary: In this study, an all-fiber bidirectional mode-locked laser based on nonlinear multimode interference is reported. It can generate asynchronous pulse trains in different directions and operate in different states. This work provides a new platform for studying the dynamic characteristics of bidirectional mode-locked lasers.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Xiuqi Wu, Junsong Peng, Sonia Boscolo, Ying Zhang, Christophe Finot, Heping Zeng
Summary: Generating pulse from an ultrafast laser is challenging task that involves adjusting multiple control parameters. Machine-learning tools have shown potential for designing smart lasers. The use of evolutionary algorithms for self-optimization of breather regime in fiber lasers opens up a new avenue for exploration and optimization of complex dynamics in nonlinear systems.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Junsong Peng, Zihan Zhao, Sonia Boscolo, Christophe Finot, Srikanth Sugavanam, Dmitry Churkin, Heping Zeng
Summary: This study observed different types of breather complexes in a mode-locked fiber laser, with intermolecular temporal separation reaching several hundreds of picoseconds, indicating long-range interactions. This opens the possibility of studying the dynamics of many-body systems where breathers are the elementary constituents.
LASER & PHOTONICS REVIEWS
(2021)
Article
Optics
Zi-xuan Ding, Ye Chen, Fei Xu
Summary: A stable pulsed all-fiber laser based on the hybrid graphene microfiber knot resonator device is proposed and demonstrated, utilizing saturable absorption and the nonlinear-polarization-rotation effect for boosting multiple pulsation regimes. The versatile device achieved various pulse modes experimentally, acting as a polarizer, comb filter, and nonlinear component simultaneously, demonstrating a novel application in ultrafast and nonlinear photonics.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Qiujun Ruan, Xiaosheng Xiao, Jinhai Zou, Hang Wang, Shuzheng Fan, Tianran Li, Jin Li, Zhipeng Dong, Zhiping Cai, Zhengqian Luo
Summary: This paper reports a fiber laser capable of spatiotemporal mode-locking (STML) at visible wavelengths, demonstrating its stability and narrow pulse duration through theoretical prediction and experimental realization. The locking of transverse and longitudinal modes is also illustrated, and the power is further boosted by establishing an ultrafast fiber amplifier.
LASER & PHOTONICS REVIEWS
(2022)
Article
Instruments & Instrumentation
Wanggen Sun, Kai Jiang, Wenjing Tang, Jian Su, Kang Chen, Qi Liu, Wei Xia
Summary: The mode-locked and harmonic mode-locked operations were achieved in an erbium-doped fiber laser using a high-quality germanene-polyvinyl alcohol film. The germanene film showed promising potential as a nonlinear photonic device for pulse lasers.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Review
Optics
Kuen Yao Lau, Xiaofeng Liu, Jianrong Qiu
Summary: MXenes are a new class of two-dimensional materials with huge potential in photonics, electronics, and energy fields. Recent studies have shown that MXenes can replace traditional saturable absorbers, exhibiting high saturable absorption, flexible modulation ability, and high electron density. This review summarizes the synthesis and characterization of MXene, focusing on its nonlinear saturable absorption and its application as a saturable absorber in mode-locked fiber lasers.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Jingjing Lei, Junli Wang, Xiaoli Wang, Zhiyi Wei
Summary: The study utilized ternary Mo(1-x)WxS2 alloys to fabricate Mo0.5W0.5S2 film, serving as an ultrashort pulse mode-locker in erbium-doped all fiber lasers. The experimental results demonstrated stable self-mode-locking pulses with specific characteristics, showing promising potential for ultrafast fiber laser applications.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Yueqing Du, Chao Zeng, Zhiwen He, Qun Gao, Dong Mao
Summary: In this study, we revealed the coherent dissipative soliton intermittency in normal-dispersion fiber lasers based on real-time spectroscopy. By increasing the pump strength, the intermittency transforms from transient pulsation to bi-stable soliton, with the slow-gain effect dominating such coherent intermittency.
CHINESE OPTICS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Chunyu Guo, Shupeng Lian, Shuangchen Ruan, Xiaogang Ge, Peiguang Yan, Jiachen Wang, Ping Hua, Qitao Lue
Summary: An experimental demonstration of a 1/1.5 mu m dual-band mode-locked fiber laser is presented. The laser utilizes a unique architecture where the 1 mu m and 1.5 mu m signals are generated independently in shared cavities, with mode-locking achieved through nonlinear polarization evolution and cross-phase modulation. Synchronized dual-band mode-locking operation is successfully achieved using the laser.
IEEE PHOTONICS JOURNAL
(2021)
Article
Multidisciplinary Sciences
Xiuqi Wu, Ying Zhang, Junsong Peng, Sonia Boscolo, Christophe Finot, Heping Zeng
Summary: This article investigates nonlinear systems with two competing frequencies, focusing on breather lasers. It demonstrates frequency locking at Farey fractions and discusses the potential of this phenomenon in synchronization dynamics.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Zhipeng Dong, Hang Wang, Wencheng Jia, Jinhai Zou, Zhengqian Luo
Summary: In this study, a 488 nm blue picosecond pulse was generated by frequency doubling a homemade 977 nm picosecond fiber laser. The original laser had a 977.84 nm central wavelength, 0.13 nm spectral width, 12.94 ps pulse duration, 76.09 MHz repetition rate, and 5.12 mW average power. After scaling up the power to 2.06 W, the pulse duration and spectral width slightly increased to 16.84 ps and 0.24 nm, respectively. The blue picosecond laser achieved a central wavelength of 488.92 nm and a linewidth of 0.17 nm. This compact and high-power laser has potential applications in high-resolution imaging, underwater detection, and material processing.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yang Liu, Yingtian Xu, Chongyang Xu, Jiahao Chen, Heng Liu, He Zhang, Liang Jin, Jie Fan, Yonggang Zou, Xiaohui Ma
Summary: In this study, a Ti3C2Tx/graphene vertical heterostructure (TG-VHS) is successfully used as a saturable absorber (SA) to generate femtosecond laser pulses via passive mode-locking, demonstrating the potential of MXenes-based heterostructures for ultrafast photonics. The study provides an important strategy for developing VHS SAs for ultrafast pulse fiber lasers and opens new perspectives for designing advanced MXenes-based photonic devices.
ADVANCED OPTICAL MATERIALS
(2023)
