Progress in Injection-Seeded All-Solid-State Single-Frequency Pulse Laser

Jiangxiong, 龙江雄 Long; Gang, 李刚 Li; Bin, 杨彬 Yang; Hongquan, 姚红权 Yao; Jianyong, 丁建永 Ding; Jun, 周军 Zhou

doi:10.3788/lop55.090001

Cited by 2 publications

(1 citation statement)

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“…Light Detection and Ranging (LIDAR) has been rapidly developing in uncrewed vehicles, robotics, image recognition, and medical care to create Smart City in recent years [1,2]. An integrated optical waveguide phased array (OPA) [3,4] chip is the most promising solution for all-solid-state [5], miniaturized LIDAR [6], which has been successfully applied in beam scanning, distance detection, and chip-level optical communication [7]. LIDAR with silicon-based OPA has been widely studied [3,4,8,9], because of its high sensitivity, long range, high interference immunity, compatibility with CMOS processes, and low price.…”

Section: Introductionmentioning

confidence: 99%

Taper-tip double-layer grating antenna based on SiN-on-SOI with large scale-scanning range for LiDAR

Cheng

Zhang²,

Chen³

et al. 2022

Eng. Res. Express

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In this article, with the objective of reducing the emission loss, enhancing the emission directionality and scale-scanning range, without increasing the complexity of the LIDAR system, a CMOS-compatible silicon nitride taper-tip double-layer auxiliary grating antenna is proposed and investigated systematically. Compared to conventional double layer grating, the directionality exceeds 72% for wavelengths from 1450 nm to 1600 nm, with a maximum directionality of 97.5% at 1550 nm. Therefore, the far-field divergence angle of 0.0081° × 0.03° and a large field of view of 108.45° × 23.43° can be achieved when the antenna aperture is 1.6 cm × 2.5 cm. These improvements come mainly from the increasing unidirectional emission performance of the phased array by adjusting the key structural parameters of the inverted taper-tip double-layer structure.

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Section: Introductionmentioning

confidence: 99%

Taper-tip double-layer grating antenna based on SiN-on-SOI with large scale-scanning range for LiDAR

Cheng

Zhang²,

Chen³

et al. 2022

Eng. Res. Express

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百纳秒脉宽单频大能量1064 nm激光器

Yu Zhenzhen,

Zhong Chaoyang,

Wang Mingjian

et al. 2024

中国激光

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Objective Spacebased Doppler wind light detection and ranging technology is a highly competitive field among the world' s leading aerospace powers. As a key component of lidar, the performance of the singlefrequency pulsed laser source determines the measurement accuracy and detection capability of the entire system . For coherent Doppler wind lidar, a laser pulse width exceeding 100 ns is required to ensure the accuracy of the wind measurement. Moreover, spaceborne lidar systems place stringent demands on

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Progress in Injection-Seeded All-Solid-State Single-Frequency Pulse Laser

Cited by 2 publications

References 0 publications

Taper-tip double-layer grating antenna based on SiN-on-SOI with large scale-scanning range for LiDAR

Taper-tip double-layer grating antenna based on SiN-on-SOI with large scale-scanning range for LiDAR

百纳秒脉宽单频大能量1064 nm激光器

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