RSOA-based high-speed amplified reverse modulation reflective module and implementation method

Abstract

The invention discloses an RSOA-based high-speed amplified reverse modulation reflective module and an implementation method. The RSOA-based high-speed amplified reverse modulation reflective module comprises an optical antenna, a space-fiber coupling device, a signal source, and a reflective semiconductor optical amplifier. A light carrier received by the optical antenna from free space passes through the space-fiber coupling device and then is coupled into the reflective semiconductor optical amplifier; the reflective semiconductor optical amplifier modulates an electric signal sent out by the signal source to an optical signal from the space-fiber coupling device; the signal is amplified and then the amplified signal is reflected to the space-fiber coupling device; the processed signal is coupled to the free space through the space-fiber coupling device; and the signal is returned reversely through the optical antenna, so that high-speed long-distance free space communication can be realized. The RSOA-based high-speed amplified reverse modulation reflective module and implementation method can be applied to a high-speed amplified reverse modulation reflective type free space laser communication system, so that the volume and power consumption of the reverse modulation terminal equipment can be reduced; and the transmission rate of the uplink signal can be improved and the power of the uplink signal can be amplified, so that the need of the next-generation high-speed large-capacity long-distance free-space optical signal transmission can be satisfied.

Description

technical field [0001] The invention relates to a signal modulation reflective amplification function module and its realization method, in particular to a high-speed amplified reverse modulation reflection module based on RSOA (reflective semiconductor optical amplifier) ​​and its realization method. Background technique [0002] With the increasing popularity of communication equipment such as mobile phones and computers and the rapid development of space information technology, people's demand for high-speed wireless information security transmission is growing rapidly. Free space optical communication technology has many potential advantages, such as high security, strong anti-interference ability, high bandwidth and high spectral utilization, etc., and has been widely used in information communication between mobile devices and base stations (aircraft, satellites and ground platforms, etc.) Transmission system. However, traditional high-precision active free-space opti...

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Problems solved by technology

[0003] Existing inverse modulation schemes include frustrated total internal reflectors, electro-optic phase modulators, liquid crystal modulators, and multiple quantum well devices, etc. The modulation and reflection elements of these schemes are discrete and large in size, and the modulation rate is relatively low

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