M. A. Trishenkov (auth.)0792346912, 9780792346913
This book is addressed to designers of photodetectors and photodetecting systems, designers of focal plane arrays, charge-coupled devices, specialists in IR technologies, designers of optoelectronic detecting, guiding and tracking systems, systems for IR direction finders, lidars, lightwave communication systems, IR imagers. All these specialists are united by one common purpose: they are all striving to catch the weakest possible optical signal. The most important characteristic of photosensitive devices is their detectivity, which determines the lowest level of optical signal they are able to detect above the noise level. These threshold characteristics define the most important tactical and technical parameters of the entire optoelectronic system, such as its range, resolution, precision. The threshold characteristics of optoelectronic system depend on many of its components; all designers agree, however, that the critically responsible part of the system is the photodetector [1]. By the end of the 1960s the physicists and the engineers were able to overcome many obstacles and to create photodetectors (at least single-element or few-element ones) which covered all the main optical bands (0. 4 . . . 2,2 . . . 3, 3 . . . 5,8 . . . 14 J. . Lm), carried out the detection almost without any loss (the quantum yield being as high as 0. 7 . . . 0. 9), and reduced the noise level to the lowest possible limit. |
Table of contents :
Front Matter….Pages i-xxii
Photodetecting Assembly as Detection System for Weak Optical Signals….Pages 1-65
Signal and Noise in Photodetecting Assemblies….Pages 66-166
Foundations of Theory of Optimal Filtering as Applied to Photodetecting Assemblies….Pages 167-226
Optimal Filtering of Photo Signals (Time-Domain Analysis)….Pages 227-256
Signal Processing in Real Photodetecting Assemblies….Pages 257-304
Detection of Weak Optical Signals with Photodetecting Assemblies Based on Avalanche Photodiodes….Pages 305-356
Detection and Processing of Optical Signals in Matrices….Pages 357-416
Detection of Weak Optical Signals in Special-Purpose Optoelectronic Systems….Pages 417-451
Conclusion….Pages 452-452
Back Matter….Pages 453-458 |
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