Low-noise detector and amplifier design for 100-ns direct detection CO2 lidar receiver

Maureen M. Cafferty; Bradly J. Cooke; Bryan E. Laubscher; Nicholas L. Olivas; Kenneth R. Fuller

doi:10.1117/12.278993

23 October 1997 Low-noise detector and amplifier design for 100-ns direct detection CO₂ lidar receiver

Maureen M. Cafferty, Bradly J. Cooke, Bryan E. Laubscher, Nicholas L. Olivas, Kenneth R. Fuller

Proceedings Volume 3122, Infrared Spaceborne Remote Sensing V; (1997) https://doi.org/10.1117/12.278993
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The development and test results of a prototype detector/amplifier design for a background limited, pulsed 100 ns, 10 - 100 kHz repetition rate LIDAR/DIAL receiver system are presented. Design objectives include near-matched filter detection of received pulse amplitude and round trip time-of- flight, and the elimination of excess correlated detector/amplifier noise for optimal pulse averaging. A novel pole-zero cancellation amplifier, coupled with a state-of-the- art SBRC (Santa Barbara Research Center) infrared detector was implemented to meet design objectives. The pole-zero cancellation amplifier utilizes a tunable, pseudo-matched filter technique to match the width of the laser pulse to the shaping time of the filter for optimal SNR performance. Low frequency correlated noise, (1/f and drift noise) is rejected through a second order high gain feedback loop. The amplifier also employs an active detector bias stage minimizing detector drift. Experimental results will be provided that demonstrate near-background limited, 100 ns pulse detection performance given an 8.5 - 11.5 micrometer (300 K B.B.) radiant background, with the total noise floor spectrally white for optimal pulse averaging efficiency.

Citation Download Citation

Maureen M. Cafferty, Bradly J. Cooke, Bryan E. Laubscher, Nicholas L. Olivas, and Kenneth R. Fuller "Low-noise detector and amplifier design for 100-ns direct detection CO₂ lidar receiver", Proc. SPIE 3122, Infrared Spaceborne Remote Sensing V, (23 October 1997); https://doi.org/10.1117/12.278993

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Amplifiers

Field effect transistors

Receivers

Optical amplifiers

Electronic filtering

Active sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years