Self-oscillation communication module

Details Self-oscillation communication module Self-oscillation communication module

2011-03-15

2011-03-15

Sedighian, M. R. (Department: 2613)

Optical communications

Transmitter and receiver system

Including optical circuit board

C398S117000, C398S116000

Reexamination Certificate

active

07907851

ABSTRACT:
Provided is a self-oscillation communication module in which an optical device, a solar battery, and a radio frequency (RF) device are monolithic-integrated. When an active layer of the optical device contains In(Ga)As quantum dots, the optical device can emit light ranging from 800 to 1600 nm and transmit signals at a high speed of 20 Gbps or higher. Since a light absorption layer of the solar battery is formed of InGa(Al)P which has a higher bandgap than silicon and high visible light absorptivity, the solar battery can generate a large current even with a very small light reception area. Therefore, the self-oscillation communication module can always operate using the solar battery without an external power source even in polar regions and deserts and can perform optical communication or high-frequency wireless communication with a wide frequency range.

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