Stimulated by the ever-increasing demands of wide-bandwidth in optical communication and high-performance computing in microprocessor, silicon photonic devices are entering into the integrated and low-cost trend, and series of significant breakthrough both in theory and technology are achieved. Recent progress in the development of these photonic devices such as silicon laser, amplifier and modulator are reviewed, and their applications in optical gyroscope and optical communication are analyzed and designed. A three-dimension active resonator is designed to achieve the intergrated resonance optical gyroscope. The outlook and potential applications of these devices in future optical gyroscope and optical communication systems are presented.