Article
Optics
Xiaohui Li, Liang Jin, Renyan Wang, Shangzhi Xie, Xiaochen Zhang, He Zhang, Yingtian Xu, Xiaohui Ma
Summary: In this paper, a Gigahertz harmonic mode-locked fiber laser based on microfiber-assisted nonlinear multimode interference is proposed and demonstrated, achieving stable mode-locking at a repetition rate of 1.26 GHz. This provides new insights into implementing high repetition frequency mode-locking fiber lasers.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Jiaqiang Lin, Zhipeng Dong, Tianhao Dong, Yiming Zhang, Chuansheng Dai, Peijun Yao, Chun Gu, Lixin Xu
Summary: A switchable single wavelength and dual-wavelength all-fiber ultrafast mode-locked laser was reported based on the nonlinear multimode interference effect of graded-index multimode fiber. By adjusting intra-cavity loss and polarization controllers, traditional switchable single wavelength and dual-wavelength mode-locking can be realized, along with the observation of a single wavelength harmonic soliton molecule mode-locking. This laser could be useful in measuring chemical reactions and has rarely been reported in literature.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Shan Wang, Zhiguo Lv, Jintao Qiu
Summary: By introducing grating pairs for dispersion management, different dispersion regimes can be achieved, ranging from soliton state in the anomalous dispersion regime to dissipative soliton state in the normal dispersion regime. Tunable spectrum distribution can be realized by adjusting two intra-cavity polarization controllers. This dispersion management method complements NL-MMI mode-locking techniques and enables stable self-start mode locking, making it useful for practical applications.
Article
Instruments & Instrumentation
Xingwei Li, Geng Li, Shuguang Li, Huijing Du, Jianshe Li, Ying Guo, Xiaojian Meng, Menglei Pei, Xingwang Cui, Chengjun Wang, Ling Qin, Meng Li
Summary: Passively mode locked fiber lasers exhibit various nonlinear effects, and in this experiment, we observed the evolution of soliton bunch to dissipates soliton resonance pulses by introducing nonlinear polarization rotation and a multimode fiber polarization controller. The important role of multimode fiber polarization controller in the evolution and generation of soliton pairs was demonstrated.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Optics
Renyan Wang, Liang Jin, Jiazhu Wang, Shangzhi Xie, Xiaohui Li, Yingtian Xu, He Zhang, Xin Zhao, Xiaohui Ma
Summary: A novel harmonic mode-locked fiber laser based on nonlinear multimode interference in a microfiber-assisted ultrafast optical switch is proposed in this letter. Experimental results demonstrate that stable high-repetition-rate laser output can be achieved through specific design.
CHINESE OPTICS LETTERS
(2022)
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
Pradeep K. Gupta, Chandra P. Singh, Pranab K. Mukhopadhyay, Kushvinder S. Bindra
Summary: A mode-locking operation was achieved in a fiber laser using a nonlinear MMI-based saturable absorber under an all-normal dispersion configuration. A narrow-band wavelength-tunable spectral filter was found to be necessary for an effective mode-locking operation with the MMI-based saturable absorber, resulting in single-pulse mode-locking.
Article
Instruments & Instrumentation
Yaoyao Qi, Mengyuan Liu, Nannan Luan, Song Yang, Zhenxu Bai, Bingzheng Yan, Ding Jie, Yulei Wang, Zhiwei Lu
Summary: This paper reviews the research status on the mechanism and technology of all-fiber mode-locked ultrafast lasers with multimode fiber based saturable absorber. By using a novel all-fiber structured mode-locking modulation device, the single pulse energy and pulse width of conventional soliton can reach the order of nJ and fs in wavelengths of 1 μm, 1.5 μm, and 2 μm. It also enables switchable and tunable dual or multi-wavelength mode-locked operation. Additionally, fascinating nonlinear optical phenomena such as soliton molecules and noise-like pulses were achieved, which provides an excellent platform for studying nonlinear optics.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Xiabing Zhou, Mingwei Qiu, Yuhao Qian, Mengmeng Chen, Zuxing Zhang, Lin Zhang
Summary: This paper proposes and fabricates all-fiber PBS, demonstrates passively mode-locked fiber lasers using this technology, and finds that it has advantages of simple fabrication, compact size, variable polarization extinction ratio, and operation bandwidth. Compared to traditional PBS, all-fiber mode-locked lasers with microfiber PBSs exhibit stable performance, showing potential towards true all-fiber mode-locked lasers.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Optics
Wenlei Li, Xiaoliang Li, Gaoli Geng, Ruping Lin, Guangwei Chen, Guomei Wang, Chao Zeng, Xinliang Wang
Summary: We report the generation of separation-locked bound solitons in a passively mode-locked all-fiber laser with a Fabry-Perot (F-P) microcavity. The observed bound solitons are directly generated from continuous wave without experiencing single-soliton mode-locking process. The numerical results are in good agreement with the experimental observations and confirm that the generation of bound solitons with locked separation is attributed to the F-P microcavity. This study provides a versatile method to generate several types of separation-locked bound solitons using F-P microcavity, which play vital roles in fiber sensor and optical information storage.
OPTICS AND LASER TECHNOLOGY
(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
Haoxue Qiu, Minghui Sun, Yong Yao, Yuzhai Pan, Xiangpeng Wang, Ji Wang
Summary: We propose and demonstrate a saturable absorber (SA) of composite mode-locked mechanisms based on the Carbon nanotube (CNT) film sandwiched between the multimode fiber (MMF) connectors (CNT-MMF) for achieving passively mode-locked fiber laser. The fiber laser based on CNT-MMF-SA can achieve full mode-locked and work for a long time at higher pump power, while the fiber laser based on the CNT-SMF-SA can only occur the Q -switched mode-locked state and the CNT-film is easily burned out. The structure of the CNT-MMF provides an effective way for obtaining high damage threshold and improving the performance of the fiber laser based on various nanomaterial films.
Article
Engineering, Electrical & Electronic
Arslan Anjum, Martin Rochette
Summary: We present a reflection mode saturable absorber based on nonlinear multimode interference in a graded index multimode fiber. The saturable absorber provides a modulation depth of 12 % at a low saturation intensity of 18.5 MW/cm2. The all-fiber structure and reflection mode design of this saturable absorber makes it an ideal device for the fabrication of fiber lasers with linear resonant cavity. When inserted in a linear laser cavity comprising a thulium doped fiber as the gain medium, the saturable absorber triggers stable modelocked pulses with a center wavelength of 1905 nm and spectral width of 11.2 nm.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Optics
Xiaohui Li, Liang Jin, Yu Sui, Yikai Liu, Chongyang Xu, Yongjie Wang, He Zhang, Yingtian Xu, Xiaohui Ma
Summary: This paper proposes a harmonic mode-locked fiber laser based on a novel highly nonlinear hybrid multimode interference saturable absorber (SA). Through numerical simulations, it is shown that the stability of nonlinear multimode interference mode-locking can be improved by using a tapered graded-index multimode fiber (TA-GIMF) to filter higher-order transverse modes. The combination of TA-GIMF and Bi2Te3 enhances the nonlinear saturation absorption properties and nonlinear coefficients in the laser cavity, resulting in a repetition rate of 2.11 GHz, which is the highest achieved based on the NL-MMI effect and provides new insights into high repetition-rate mode-locked fiber lasers.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Chuansheng Dai, Zhipeng Dong, Jiaqiang Lin, Yimin Zhang, Peijun Yao, Lixin Xu, Chun Gu
Summary: In this study, we demonstrate an all-fiber spatiotemporal mode-locked laser based on graded-index multimode fiber, which is capable of delivering high single-pulse energy and improved beam quality. By amplifying the pulse and achieving self-cleaning effect, high power pulses with high beam quality can be obtained in the all-fiber system.
Article
Engineering, Electrical & Electronic
Tao Chen, Huifang Chen, D. N. Wang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2015)
Article
Optics
Tao Chen, Limin Wu, Liangling Wang, Xin Li
JOURNAL OF MODERN OPTICS
(2017)
Article
Optics
Xiao-Jun Cui, Liang-Ling Wang, Hai-Kun Zhang, Tao Chen
OPTICAL ENGINEERING
(2016)
Article
Optics
Tao Chen, Liangling Wang, Lijuan Chen, Jing Wang, Haikun Zhang, Wei Xia
PHOTONICS RESEARCH
(2018)
Article
Optics
Tao Chen, Changrui Liao, D. N. Wang, Yiping Wang
Article
Physics, Multidisciplinary
Li Jun, Chen Tao, Sun Jun-Qiang, Shen Xiang
CHINESE PHYSICS LETTERS
(2013)
Article
Engineering, Electrical & Electronic
Tao Chen, Junqiang Sun, Linsen Li, Jianguan Tang, Yujie Zhou
IEEE PHOTONICS TECHNOLOGY LETTERS
(2012)
Article
Engineering, Electrical & Electronic
Tao Chen, Junqiang Sun, Linsen Li, Jianguan Tang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2012)
Article
Optics
Tao Chen, Changrui Liao, D. N. Wang, Yiping Wang
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2014)
Article
Optics
Xiaoying He, Tao Chen, D. N. Wang
Article
Optics
Tao Chen, Junqiang Sun, Linsen Li, Yujie Zhou
OPTICS COMMUNICATIONS
(2012)
Article
Optics
Tao Chen, Junqiang Sun, Linsen Li
Article
Optics
Yuhu Ren, Jimo Jian, Wenjiang Tan, Jing Wang, Tao Chen, Wei Xia
Summary: The study investigates the propagation of femtosecond laser pulses through turbid media via Monte Carlo simulation. It shows that transmitted pulses spread due to scattering effects, with dual-edge pulses having wider broadening than single-edge pulses. The influence of scattering particles on front and rear edges of femtosecond laser pulses can be distinguished in turbid media with optical depth less than 10.
Article
Optics
Tao Chen, Xianghan Wei, Xin Zhang, Lijuan Chen, Yuhu Ren, Feng Peng, Haikun Zhang, Wei Xia
Summary: The graded-index multimode fiber structure is used to generate noise-like pulses in a Yb-doped fiber laser. The output pulses have varying characteristics depending on the pump power and the optical spectrum evolution is influenced by the fiber structure. Different lengths of HI1060 fiber are added to the laser cavity to investigate the influence of total cavity dispersion on the noise-like pulses.
OPTICS AND LASER TECHNOLOGY
(2021)
