Scanning Angle Magnification with Compact Reflective Optics for Light Detection and Ranging

Cheng Ta Mu; Po Cheng Chang; Cheng Huan Chen

doi:10.3390/photonics9020059

Scanning Angle Magnification with Compact Reflective Optics for Light Detection and Ranging

Cheng Ta Mu, Po Cheng Chang, Cheng Huan Chen^*

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The function of lidar requests a large scanning angle for a wide field of view and a well calibrated collimation of the laser beam for distant sensing. Besides meeting the required functionality, the compact form factor of the whole optical system is also highly desirable for the ease of being installed in mobile systems. In corresponding to the currently developed phase array laser which can achieve beam scanning without mechanical movement but still with a small scanning angle, a compact optics consisting of only two reflective surfaces has been proposed to magnify the scanning angle of a laser beam up to seven times while keeping the divergence of the laser beam smaller than 8 mrad for some short distance applications. The prototype has been prepared and evaluated with the expected performance.

Original language	English
Article number	59
Journal	Photonics
Volume	9
Issue number	2
DOIs	https://doi.org/10.3390/photonics9020059
State	Published - Feb 2022

Keywords

Beam steering
Lidar
Optical coupling
Optical design
Scanning angle

Access to Document

10.3390/photonics9020059

Cite this

@article{f460b73ac3a6486d88941b21e197ee00,

title = "Scanning Angle Magnification with Compact Reflective Optics for Light Detection and Ranging",

abstract = "The function of lidar requests a large scanning angle for a wide field of view and a well calibrated collimation of the laser beam for distant sensing. Besides meeting the required functionality, the compact form factor of the whole optical system is also highly desirable for the ease of being installed in mobile systems. In corresponding to the currently developed phase array laser which can achieve beam scanning without mechanical movement but still with a small scanning angle, a compact optics consisting of only two reflective surfaces has been proposed to magnify the scanning angle of a laser beam up to seven times while keeping the divergence of the laser beam smaller than 8 mrad for some short distance applications. The prototype has been prepared and evaluated with the expected performance.",

keywords = "Beam steering, Lidar, Optical coupling, Optical design, Scanning angle",

author = "Mu, {Cheng Ta} and Chang, {Po Cheng} and Chen, {Cheng Huan}",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2022",

month = feb,

doi = "10.3390/photonics9020059",

language = "English",

volume = "9",

journal = "Photonics",

issn = "2304-6732",

publisher = "MDPI AG",

number = "2",

}

TY - JOUR

T1 - Scanning Angle Magnification with Compact Reflective Optics for Light Detection and Ranging

AU - Mu, Cheng Ta

AU - Chang, Po Cheng

AU - Chen, Cheng Huan

PY - 2022/2

Y1 - 2022/2

N2 - The function of lidar requests a large scanning angle for a wide field of view and a well calibrated collimation of the laser beam for distant sensing. Besides meeting the required functionality, the compact form factor of the whole optical system is also highly desirable for the ease of being installed in mobile systems. In corresponding to the currently developed phase array laser which can achieve beam scanning without mechanical movement but still with a small scanning angle, a compact optics consisting of only two reflective surfaces has been proposed to magnify the scanning angle of a laser beam up to seven times while keeping the divergence of the laser beam smaller than 8 mrad for some short distance applications. The prototype has been prepared and evaluated with the expected performance.

AB - The function of lidar requests a large scanning angle for a wide field of view and a well calibrated collimation of the laser beam for distant sensing. Besides meeting the required functionality, the compact form factor of the whole optical system is also highly desirable for the ease of being installed in mobile systems. In corresponding to the currently developed phase array laser which can achieve beam scanning without mechanical movement but still with a small scanning angle, a compact optics consisting of only two reflective surfaces has been proposed to magnify the scanning angle of a laser beam up to seven times while keeping the divergence of the laser beam smaller than 8 mrad for some short distance applications. The prototype has been prepared and evaluated with the expected performance.

KW - Beam steering

KW - Lidar

KW - Optical coupling

KW - Optical design

KW - Scanning angle

UR - http://www.scopus.com/inward/record.url?scp=85123512425&partnerID=8YFLogxK

U2 - 10.3390/photonics9020059

DO - 10.3390/photonics9020059

M3 - Article

AN - SCOPUS:85123512425

SN - 2304-6732

VL - 9

JO - Photonics

JF - Photonics

IS - 2

M1 - 59

ER -

Scanning Angle Magnification with Compact Reflective Optics for Light Detection and Ranging

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this