Self-Injection Locking of a Distributed Feedback Laser Diode Using a High-Finesse Fabry-Perot Microcavity

Wei, Xing; Xie, Zhenda; Zhu, Shining

doi:10.3390/app9214616

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…Our high-Q FFP microresonator is fabricated through three steps: (i) commercial HNLF (OFS 80412m2) is carefully cleaved and encapsuled in a ceramic fiber ferrule; (ii) both fiber ends are mechanically polished to sub-wavelength smoothness 62 ; (iii) both fiber ends are coated with optical dielectric Bragg mirror (inset of Fig. 2a ) with reflectivity over 99.5% from 1530 to 1570 nm.…”

Section: Methodsmentioning

confidence: 99%

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Nie

Jia

et al. 2022

Light Sci Appl

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Optical frequency combs in microresonators (microcombs) have a wide range of applications in science and technology, due to its compact size and access to considerably larger comb spacing. Despite recent successes, the problems of self-starting, high mode efficiency as well as high output power have not been fully addressed for conventional soliton microcombs. Recent demonstration of laser cavity soliton microcombs by nesting a microresonator into a fiber cavity, shows great potential to solve the problems. Here we study the dissipative soliton generation and interaction dynamics in a microresonator-filtered fiber laser in both theory and experiment. We bring theoretical insight into the mode-locking principle, discuss the parameters effect on soliton properties, and provide experimental guidelines for broadband soliton generation. We predict chirped bright dissipative soliton with flat-top spectral envelope in microresonators with normal dispersion, which is fundamentally forbidden for the externally driven case. Furthermore, we experimentally achieve soliton microcombs with large bandwidth of ~10 nm and high mode efficiency of 90.7%. Finally, by taking advantage of an ultrahigh-speed time magnifier, we study the real-time soliton formation and interaction dynamics and experimentally observe soliton Newton’s cradle. Our study will benefit the design of the novel, high-efficiency and self-starting microcombs for real-world applications.

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Section: Methodsmentioning

confidence: 99%

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Nie

Jia

et al. 2022

Light Sci Appl

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Synthesized spatiotemporal mode-locking and photonic flywheel in multimode mesoresonators

et al. 2022

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Dissipative Kerr soliton (DKS) frequency combs—also known as microcombs—have arguably created a new field in cavity nonlinear photonics, with a strong cross-fertilization between theoretical, experimental, and technological research. Spatiotemporal mode-locking (STML) not only adds new degrees of freedom to ultrafast laser technology, but also provides new insights for implementing analogue computers and heuristic optimizers with photonics. Here, we combine the principles of DKS and STML to demonstrate the STML DKS by developing an unexplored ultrahigh-quality-factor Fabry–Pérot (FP) mesoresonator based on graded index multimode fiber (GRIN-MMF). Complementing the two-step pumping scheme with a cavity stress tuning method, we can selectively excite either the eigenmode DKS or the STML DKS. Furthermore, we demonstrate an ultralow noise microcomb that enhances the photonic flywheel performance in both the fundamental comb linewidth and DKS timing jitter. The demonstrated fundamental comb linewidth of 400 mHz and DKS timing jitter of 500 attosecond (averaging times up to 25 μs) represent improvements of 25× and 2.5×, respectively, from the state-of-the-art. Our results show the potential of GRIN-MMF FP mesoresonators as an ideal testbed for high-dimensional nonlinear cavity dynamics and photonic flywheel with ultrahigh coherence and ultralow timing jitter.

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Environmentally Stable Ultra-Low Noise Self-Injection Locked Semiconductor Lasers

Savchenkov,

Zhang,

Iltchenko

et al. 2024

Optical Fiber Communication Conference (OFC) 2024

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Self-Injection Locking of a Distributed Feedback Laser Diode Using a High-Finesse Fabry-Perot Microcavity

Cited by 5 publications

References 32 publications

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Synthesized spatiotemporal mode-locking and photonic flywheel in multimode mesoresonators

Environmentally Stable Ultra-Low Noise Self-Injection Locked Semiconductor Lasers

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