scholarly journals Quantitative study of high dynamic range Sigma-Delta-based focal plane array architectures

2004 ◽  
Author(s):  
Sam Kavusi ◽  
Hossein Kakavand ◽  
Abbas El Gamal
Keyword(s):  
Quantitative Study ◽  
Focal Plane ◽  
Dynamic Range ◽  
Focal Plane Array ◽  
High Dynamic Range ◽  
Sigma Delta ◽  
High Dynamic

HIGH DYNAMIC RANGE PASSIVE OPTICAL LIMITERS

1993 ◽  
Vol 02 (04) ◽  
pp. 483-501 ◽  
Author(s):  
D.J. HAGAN ◽  
T. XIA ◽  
A.A. SAID ◽  
T.H. WEI ◽  
E.W. VAN STRYLAND
Keyword(s):  
Focal Plane ◽  
Individual Component ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Device Performance ◽  
Optical Limiters ◽  
Focal Position ◽  
High Dynamic ◽  
The Individual ◽  
Proof Of Principle

We present results of optical limiting experiments designed to study optical geometries for increasing the dynamic range over which limiters function without incurring optical damage. Specifically, we investigate a tandem geometry with two passive nonlinear elements, one placed in the focal plane of a lens and the second placed “upstream” of the focal position to protect the material at focus from damage. To provide a proof-of-principle demonstration of this geometry, simple limiters consisting of combinations of reverse saturable absorber dyes and a carbon black suspension in thin cells were tested. Our results show that a substantial increase in device performance can be achieved by use of a tandem limiter geometry. Simple modelling predicts that the dynamic range of a separate-element tandem limiter is given by the product of the dynamic ranges of the individual component limiting elements, in agreement with our experimental results.

Sign in / Sign up

Export Citation Format

Share Document