Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Frequency-agile dual-frequency lidar for integrated coherent radar-lidar architectures

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel architecture for implementing a dual-frequency lidar (DFL) exploiting differential Doppler shift measurement. The two frequency tones, needed for target velocity measurements, are selected from the spectrum of a mode-locked laser operating in the C-band. The tones’ separation is easily controlled by using a programmable wavelength selective switch, thus allowing for a dynamic trade-off among robustness to atmospheric turbulence and sensitivity. Speed measurements for different tone separations equal to 10, 40, 80, and 160 GHz are demonstrated, proving the system’s capability of working in different configurations. Thanks to the acquisition system based on an analog-to-digital converter and digital-signal processing, real-time velocity measurements are demonstrated. The MLL-based proposed architecture enables the integration of the DFL with a photonic-based radar that exploits the same laser for generating and receiving radio-frequency signal with high performance, thus allowing for simultaneous or complementary target observations by exploiting the advantages of both radar and lidar.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Dual-frequency Doppler velocimeter based on delay interferometric optical phase-locking

Yuxiang Feng, Weilin Xie, Yinxia Meng, Ling Zhang, Jiang Yang, Wei Wei, and Yi Dong
Opt. Lett. 46(9) 2103-2106 (2021)

Performance analysis of dual-frequency lidar in the detection of the complex wind field

He Xu and Jianbing Li
Opt. Express 29(15) 23524-23539 (2021)

Limits to the information gain from lidar measurements

Aniceto Belmonte
Opt. Lett. 40(8) 1869-1872 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved