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Register a new userAnalysis of detection sensitivity in optical preamplifier
تحليل حساسية الكشف في مضخم أولي ضوئي
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Added by
Damascus University ورقة بحثية
Publication date
2011
fields
Communication Engineering
and research's language is
العربية
Created by
Shamra Editor
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هدف هذا البحث إلى دراسة تحليل حساسية الكشف في مضخم أولي يستخدم كمرحلة أولى في المستقبلات الضوئية. بسبب أهمية هذا الموضوع في مقاييس المسافة الليزرية و فُضلتِ المعاملات المؤثرة في قياس المسافة باستخدام تقنية قياس المسافة بقياس زمن الطيران. ثم أنجز تحليل الضجيج في المضخمات الأولية و حسِبت نسبة الإشارة إلى الضجيج من أجل كشف إشارة بعرض نبضة 30 نانو ثانية بإدخال المعاملات على برنامج مكتوب باستخدام ماتلاب. طبقت نتائج الدراسة على عدة أنواع مضخمات أولية لتحديد أقل استطاعة ضوئية تُكشفُ .
The aim of this research is to study of detection sensitivity in optical preamplifier, which is used as a first stage in optical receivers. This subject is important because it is used in laser rangefinders. The parameters that affect the distance measurement using time of flight technique are studied in details. Then, noise analysis and signal to noise ratio calculation are performed in preamplifiers to detect a signal with pulse width of 30ns using Matlab. The study results are applied to some preamplifiers to determine the minimum detectable power.
References used
G. Ghione, semiconductor devices for highspeed optoelectronics, Cambridge University press,2009
Z. Bieleck, W. Kolosowski, R. Dufrene, and M. Borejko, "Low noise optical receiver" 11th GAAS Symposium- Munich 2003
H. N. Burns, system design of pulsed laser rangefinder. Optical engineering, 1991
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