The power density of monochromatic laser light ((586 mathrm{~nm})) is to be monitored by a silicon photodiode
Question:
The power density of monochromatic laser light \((586 \mathrm{~nm})\) is to be monitored by a silicon photodiode with area equal to \(1 \mathrm{~mm}^{2}\) (= \(\left.1 \mathrm{~mm} \times 1 \mathrm{~mm}ight)\). The quantity observed is the short-circuit current generated by the silicon. Assume that the diode is an ideal device.
(a) What current would you obtain if the light level is \(230 \mathrm{~W} / \mathrm{m}^{2}\) ?
(b) Explain how the temperature of the semiconductor affects this current. (Note: the temperature has to be lower than that which will destroy the device. For example, some \(150{ }^{\circ} \mathrm{C}\) for silicon).
(c) Instead of being shorted, the diode now is connected to a load compatible with maximum electric output. Estimate the load voltage.
Step by Step Answer:
Free Space Optical Systems Engineering Design And Analysis
ISBN: 9781119279020
1st Edition
Authors: Larry B. Stotts