Abstract: A time-delayed enlarged three-dimensional (3D) gravitational wave detection system may include a three optical fibers along three axes (X, Y, and Z-axis); and a laser signal source operatively linked with the three optical fibers; wherein structures of the three optical fibers are identical, and are adapted to pick up space/lengths changed caused by gravitational waves. And, the laser signal source includes a narrow linewidth laser to generate laser lights, an electro-optic modulator (EOM) connected with the narrow linewidth laser to modulate the phase of laser light, and a RF signal source connected to the EOM to provide ultra-stable RF signal to the EOM. In one embodiment, said narrow linewidth laser is adapted for carrying the ultra-stable RF signal, and said ultra-stable RF source is used for detecting length changes caused by the gravitational waves.

Abstract: A time-delayed enlarged three-dimensional (3D) gravitational wave detection system may include a three optical fibers along three axes (X, Y, and Z-axis); and a laser signal source operatively linked with the three optical fibers; wherein structures of the three optical fibers are identical, and are adapted to pick up space/lengths changed caused by gravitational waves. And, the laser signal source includes a narrow linewidth laser to generate laser lights, an electro-optic modulator (EOM) connected with the narrow linewidth laser to modulate the phase of laser light, and a RF signal source connected to the EOM to provide ultra-stable RF signal to the EOM. In one embodiment, said narrow linewidth laser is adapted for carrying the ultra-stable RF signal, and said ultra-stable RF source is used for detecting length changes caused by the gravitational waves.

Abstract: A solar-powered system that can be used in a predetermined space includes a plurality of solar panels to convert the sunlight into electrical energy; a thermoelectric device electrically connected with the solar panels to provide a hot surface and a cold surface; and a control module to control the temperature in the predetermined space. The solar-powered system is configured to cool down or heat up the temperature in the predetermined space. In one embodiment, the thermoelectric module is a Peltier device.