Coherent laser radar using eyesafe YAG laser transmitters

Stoneman, Robert C.; Hartman, Ross; Malm, Andrew; Gatt, Philip

doi:10.1117/12.609684

Cited by 40 publications

(16 citation statements)

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“…The light detection and ranging (LiDAR) system, converting distance measurements into signal pulses, has promising applications in driverless vehicles, atmosphere observing, etc. The optical sources of LiDAR can be solid-state lasers [1,2], fiber lasers [3,4] and semiconductor lasers [5][6][7], and are expected to have high peak power [8], high repetition frequency [9], short pulse width [9], and low beam divergence angle [10]. Compared with solid-state lasers and fiber lasers, the semiconductor lasers show a low cost, small volume, easy integration, and the highest conversion efficiency among these laser sources.…”

Section: Introductionmentioning

confidence: 99%

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

et al. 2021

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The nanosecond-level pulse-operation characteristics of photonic-crystal surface-emitting lasers (PCSELs) with ultralow divergence were investigated in detail. We demonstrate a maximum peak output power of 14 W for a current pulse width of 9 ns, which is about 28 times the saturated power under continuous wave (CW) operation. The full width at half maximum (FWHM) of the optical response pulse is about 3 ns wider than the current pulse. The maximum repetition frequency reaches 400 kHz at 10 A without significant degradation of output power while the value is 100 kHz at 40 A. Moreover, the multimode behavior of the PCSEL at a high peak current was analyzed.

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Section: Introductionmentioning

confidence: 99%

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

et al. 2021

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“…Thus, the U.S. Navy believes that a 1.6‐μm laser is suitable for use in coastal environments and can be used as an advanced laser weapon to provide high‐precision strike means to intercept antiship missiles, drones, and other targets in conjunction with proximity weapons 8 . In optical communication, because the 1.6 μm belongs to the communication band, it has great advantages and has a good matching degree with light devices, then the range finder and target recognition device in this band can be made compact and miniaturized 9 …”

Section: Introductionmentioning

confidence: 99%

Development of 1.6‐μm Er: YAG solid‐state laser for lidar

Ren

et al. 2023

Micro & Optical Tech Letters

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In view of the advantages of 1.6-μm laser, it has important applications in the fields of laser radar, industry, military, and optical communication. This paper mainly focuses on 1.6-μm Er: YAG solid-state-laser for Laser Radar. The references about pulsed 1.6-μm single-longitudinal-mode laser, continuous wave 1.6-μm Er: YAG single-longitudinal-mode seed laser, and pulsed 1.6-μm Er: YAG Q-switched amplifier are collected and analyzed. The development status is introduced, the main problems are identified, and the future development direction is clarified. Maybe, this can provide a reference for other scholars.

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“…Laser sources in the 1.6 µm eye-safe wavelength regime have a variety of applications in remote sensing, laser lidar, gas sensing, spectroscopy, and material processing [1,2]. For certain applications, such as the measurement of atmospheric trace gases of CO2 and CH4, single frequency tunable lasers are required [3,4].…”

Section: Introductionmentioning

confidence: 99%

Single longitudinal mode and wavelength tunable Er3+-doped sesquioxide ceramic laser at ~1.6 μm

Sheng

Xie

Huang

et al. 2022

Advanced Lasers, High-Power Lasers, and Applications XIII

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We demonstrate single-longitudinal-mode and wavelength-tunable operation of Er:Y2O3 ceramic laser at ~1.6 μm using in-house fabricated low scattering loss ceramic sample and in-band pumped by an Er,Yb fiber laser at 1535.6 nm. Narrow linewidth and tunable laser operation has been realized using an intracavity etalon of 50 μm thickness for wavelength tuning and mode selection, yielding a wavelength tuning span of ~89 nm in the range of 1574.4 nm-1581.1 nm, 1599.4 nm-1601 nm, 1637 nm-1641.8 nm, and 1661.4 nm-1663 nm, respectively. Single-longitudinal-mode operation was confirmed using a scanning Fabry-Perot interferometer in the whole wavelength tuning range for output power of lower than ~35 mW.

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Coherent laser radar using eyesafe YAG laser transmitters

Abstract: We report the development of an eyesafe YAG laser for coherent laser radar wind sensing applications. The upper-state pumped 1.6 µm Er:YAG laser produces high pulse energies with diffraction-limited beam quality.

Cited by 40 publications

References 0 publications

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

Development of 1.6‐μm Er: YAG solid‐state laser for lidar

Single longitudinal mode and wavelength tunable Er3+-doped sesquioxide ceramic laser at ~1.6 μm

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