Adjustable-free and movable Nd:YVO4 thin disk laser based on the telecentric cat’s eye cavity

Wang, Wei; Gao, Yongxi; Sun, Di; Du, Xuan; Guo, Jie; Liang, Xiaoyan

doi:10.3788/col202119.111403

Cited by 9 publications

(2 citation statements)

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“…The experiment design of SSLR-based mobile charging in [18] demonstrated charging a smartphone within 2-m distance and 6 • field-of-view (FOV) with more than 0.6-W electrical power (received more than 5-W optical power). An experiment on adjustable-free and movable TCR-based SSLR was also demonstrated in [19]. Besides, the safety and mobility of the SSLR were verified by spatial wave-optical simulation [20,21].…”

Section: Introductionmentioning

confidence: 91%

Time-Domain Analysis for Resonant Beam Charging and Communications With Delay-Divide Demodulation

Xiong¹,

Si²,

Liu³

et al. 2022

Preprint

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Laser has unique advantages such as abundant spectrum resources and low propagation divergence in wireless charging and wireless communications, compared with radio frequency. Resonant beams, as a kind of intra-cavity laser beams, have been proposed as the carrier of wireless charging and communication, as it has unique features including high power, intrinsic safety, and self-aligned mobility. However, this system has problems such as intra-cavity echo interference and power fluctuation. To study the time-domain behavior of the resonant beam system, we create a simulation algorithm by discretizing the laser rate equations which model the dynamics of the excited atom density in the gain medium and the photon density in the cavity. The simulation results are in good agreement with theoretical calculation. We also propose a delay-divide demodulation method to address the echo interference issue, and use the simulation algorithm to verify its feasibility. The results show that the resonant beam charging and communication system with the proposed demodulator is feasible and performs well. The analysis in this work also helps researchers to deeply understand the behavior of the resonant beam system.

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Section: Introductionmentioning

confidence: 91%

Time-Domain Analysis for Resonant Beam Charging and Communications With Delay-Divide Demodulation

Xiong¹,

Si²,

Liu³

et al. 2022

Preprint

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“…As detailed in our former work and work by other groups, conventional cat-eye retroreflector designs typically comprise a focusing lens and a mirror positioned at its focal plane [1,8,[13][14][15][16][17][18] . When implemented in a distributed-cavity laser, such a cat-eye design will introduce strong SA and limit the working distance of the laser; in the case where a long focal lens is used, a large diameter output coupler is required in order to provide feedback for beams at large angle of incidence (AoI) (angle θ in Fig.…”

Section: Introductionmentioning

confidence: 99%

Large-range alignment-free distributed-cavity laser based on an improved multi-lens retroreflector

Liu¹,

Wang²,

Sheng³

et al. 2022

中国光学快报

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A multi-lens retroreflector with field curvature compensation was designed and used in an alignment-free distributedcavity laser with a long working distance for resonant beam charging applications. The multi-lens design, which makes use of off-the-shelf components, also allows a large field of view (FoV) without requirement of large element aperture. By implementing this design, an end-pumped 1063 nm Nd∶GdVO 4 laser could deliver over 5 W continuous-wave output power over a large range of working distances (1-5 m) and with ±30°receiver FoV under an incident diode pump power of 16.6 W. The output power fluctuation was less than 10% when moving and tilting the receiver over such a large range, without requiring any realignment of the cavity.

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Enhancing the field of view of a distributed-cavity laser incorporating cat-eye optics by compensating the field-curvature

Sheng

Wang

et al. 2022

Optics & Laser Technology

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Adjustable-free and movable Nd:YVO4 thin disk laser based on the telecentric cat’s eye cavity

Cited by 9 publications

References 0 publications

Time-Domain Analysis for Resonant Beam Charging and Communications With Delay-Divide Demodulation

Time-Domain Analysis for Resonant Beam Charging and Communications With Delay-Divide Demodulation

Large-range alignment-free distributed-cavity laser based on an improved multi-lens retroreflector

Enhancing the field of view of a distributed-cavity laser incorporating cat-eye optics by compensating the field-curvature

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