Ultra-broadband optical chirp linearization for precision length metrology applications

Reibel, Randy R.; Roos, Peter A.; Berg, Trenton; Kaylor, Brant M.; Greenfield, Nathan; Barber, Zeb W.; Renner, C.; Babbitt, W.R.

doi:10.1364/ofc.2010.othq2

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In detection, the reflected light with different flight time is combined with the local reference light on a photodetector to produce beat frequency signal. The beat frequency can be extracted using a Fourier Transform (FT) [1] [2]. Because the beat frequency is related to the flight time (or the ranging), so the flight time (or the ranging) is obtained from beat signals.…”

Section: Introductionmentioning

confidence: 99%

Frequency Sweep Linearization for Semiconductor Laser Using a Feedback Loop Based on Amplitude-Frequency Response

Zhu¹,

Chen²

2021

OPJ

View full text Add to dashboard Cite

A scheme of frequency sweep linearization of semiconductor lasers using a feed-back loop based on amplitude-frequency response is demonstrated in this paper. The beat frequency signal is obtained by self-heterodyne detection. The frequency changes are converted to the envelope of beat frequency signal after amplitude-frequency response. The active frequency sweep linearization is realized by feeding envelope deviations back to the drive currents of the lasers by a feedback loop. A simulation model is built to verify this scheme by Simulink. This scheme does not need high-performance, expensive lasers, complex linearization or tedious post-processing processes, which are of great significance for related applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Frequency Sweep Linearization for Semiconductor Laser Using a Feedback Loop Based on Amplitude-Frequency Response

Zhu¹,

Chen²

2021

OPJ

View full text Add to dashboard Cite

show abstract

Laser Feedback FMCW Ranging System Based on Multiple-Equal-Phase-Subdivision Resampling

Lin

Wang

Tan

2023

J. Lightwave Technol.

View full text Add to dashboard Cite

Laser radar: historical prospective—from the East to the West

Molebny¹,

et al. 2016

View full text Add to dashboard Cite

This article discusses the history of laser radar development in America, Europe, and Asia. Direct detection laser radar is discussed for range finding, designation, and topographic mapping of Earth and of extraterrestrial objects. Coherent laser radar is discussed for environmental applications, such as wind sensing and for synthetic aperture laser radar development. Gated imaging is discussed through scattering layers for military, medical, and security applications. Laser microradars have found applications in intravascular studies and in ophthalmology for vision correction. Ghost laser radar has emerged as a new technology in theoretical and simulation applications. Laser radar is now emerging as an important technology for applications such as self-driving cars and unmanned aerial vehicles. It is also used by police to measure speed, and in gaming, such as the Microsoft Kinect.

show abstract

Ultra-broadband optical chirp linearization for precision length metrology applications

Cited by 3 publications

References 8 publications

Frequency Sweep Linearization for Semiconductor Laser Using a Feedback Loop Based on Amplitude-Frequency Response

Frequency Sweep Linearization for Semiconductor Laser Using a Feedback Loop Based on Amplitude-Frequency Response

Laser Feedback FMCW Ranging System Based on Multiple-Equal-Phase-Subdivision Resampling

Laser radar: historical prospective—from the East to the West

Contact Info

Product

Resources

About