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The signal to noise ratio of an optical communication system is 45 dB. A pin photodiode receiver with a quantum efficiency of 60% and operating wavelength of 900 nm is used. The operating bandwidth is 20 MHz, the device dark current is 20 nA. the load resistance is 86 ohms, the amplifier noise figure, Fn = 1 and the operating temperature is 300 K. 2.1. Calculate the corresponding incident optical power.

The signal to noise ratio of an optical communication system is 45 dB. A pin photodiode receiver with a quantum efficiency of 60% and operating wavelength of 900 nm is used. The operating bandwidth is 20 MHz, the device dark current is 20 nA. the load resistance is 86 ohms, the amplifier noise figure, Fn = 1 and the operating temperature is 300 K. 2.1. Calculate the corresponding incident optical power.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The signal to noise ratio of an optical communication system is 45 dB. A pin
photodiode receiver with a quantum efficiency of 60% and operating wavelength of
900 nm is used. The operating bandwidth is 20 MHz, the device dark current is 20 nA.
the load resistance is 86 ohms, the amplifier noise figure, Fn = 1 and the operating
temperature is 300 K.
2.1. Calculate the corresponding incident optical power. 
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