Article
Optics
Zhongliang Qiao, Xiang Li, Jia XuBrian Sia, WanJun Wang, Hong Wang, Lin Li, Zaijin Li, Zhibin Zhao, Guojun Liu, Hao Chen, Yi Qu, Xin Gao, Baoxue Bo, Chongyang Liu
Summary: This study utilizes double quantum wells passively mode locked lasers to achieve subpicosecond pulse generation, finding that operational parameters have significant effects on the mode-locking characteristics of the laser, especially temperature causing an increase in pulse width. This has important implications for improving the performance of the laser.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Manuel Duran-Sanchez, Olivier Pottiez, Berenice Posada-Ramirez, Ricardo Alvarez-Tamayo, Ivan Armas-Rivera, Miguel Bello-Jimenez, Yasser A. Garcia-Flores, E. Montiel-Pina, Baldemar Ibarra-Escamilla
Summary: This paper demonstrates the generation of diverse structures of robust optical pulses using a ring cavity passively mode-locked fiber laser, based on a double-clad erbium-ytterbium doped fiber. By adjusting the wave retarders, various pulsed laser operation regimes were achieved, including quasi-continuous wave, solitons, and NLPs. The NLPs obtained in this study exhibited narrow peak coherence of approximately 231 fs.
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
Engineering, Electrical & Electronic
Kangjun Zhao, Xiaosheng Xiao, Changxi Yang
Summary: This paper numerically investigates the soliton dynamics in mode-locked fiber lasers based on sinusoidal spectral filtering (SSF). It is found that SSF can facilitate the formation of dual-wavelength mode locking and generate dual-comb solitons with slightly different group velocities. Moreover, pulse shaping based on SSF and gain filtering leads to a non-monotonic relationship between the group velocity difference of the solitons and the cavity gain. Additionally, dual-comb soliton mode locking exhibits a threshold feature and multi-pulse instability.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(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
Yudong Cui, Yusheng Zhang, Youjian Song, Lin Huang, Limin Tong, Jianrong Qiu, Xueming Liu
Summary: The study reports a novel soliton operation observed in a mode-locked fiber laser, where XPM induces and sustains the vector asymmetrical soliton with spectral period doubling. The XPM-induced VAS is characterized by an asymmetrical steady state distinct from other soliton forms, contributing to further research on optical nonlinear dynamics and chaos.
LASER & PHOTONICS REVIEWS
(2021)
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
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)
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
Jiahao Guo, Jiubin Tan, Pengcheng Hu, Steven T. Cundiff
Summary: Light propagation in arrays of AlxGa1-xAs waveguides was studied, with the power coupling constant between adjacent waveguides measured precisely. The polarization dependence of coupling constants was observed due to asymmetric effective refractive index between linearly polarized modes. Through careful geometric design, comparable coupling constants were achieved in three waveguide arrays with different structures.
Article
Optics
M. Duran-Sanchez, B. Posada-Ramirez, R. alvarez-Tamayo, M. Bello-Jimenez, Y. A. Garcia-Flores, I Armas-Rivera, E. Montiel-Pina, E. A. Kuzin, B. Ibarra-Escamilla
Summary: In this experimental study, switchable rectangular pulses were generated in a passively mode-locked double-clad thulium-doped fiber laser operating in the anomalous dispersion regime. The laser utilizes a fiber loop mirror and a polarization imbalanced nonlinear optical loop mirror (NOLM) to form a linear cavity, with the loop in the NOLM allowing switching between two regimes of rectangular pulse generation. The laser is capable of generating rectangular noise-like pulses (NLPs) or dissipative soliton resonance (DSR) pulses with 1.18 MHz repetition rate at around 1990 nm.
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
Optics
Tiegang Guo, Zhaokun Wang, Feng Gao, Chunliu Zhao, Shuo Chang, Xuebin Zhang
Summary: This letter reports the experimental realization of spatiotemporal mode-locked operation in a hybrid all-fiber Er-doped laser cavity. The mode locking of longitudinal or transverse modes is achieved by changing the state of polarization controller or multimode fiber segment. Different types of multimode solitons are generated at ~ 1560 nm by adjusting the polarization controller. The study shows that the beam profiles are determined by the state of multimode fiber segment, which is different from previous research in full-MM fiber system.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Yue-Ting Tsai, Yu-Hsun Wu, Chu-Chun Wu, Shun-Tung Yen, Gray Lin, Sheng-Di Lin
Summary: This work reveals the operating mechanism and laser modes of semiconductor-based plasmonic crystal lasers (PCLs), emphasizing the essential role of waveguide mode coupling with the surface plasmonic mode. Both simulation and experimental data show that the cooperation of dielectric layers and metallic nano-pillar array provides the required high-quality factor resonant mode. Properly designing the coupling strength is crucial for the functionality of these intriguing devices.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
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)
