Fig. 1. (a) Schematic illustration of the IFOG based on an IOC. IOC, integrated optical chip; IOMC, integrated optical modulator chip; SDC, signal detection circuit; SLD, superluminescent diode; PD, photodiode; Y1/Y2, Y-branch; P, polarizer; PM, phase modulator; ADC/DAC, analog-to-digital/digital-to-analog converter; FPGA, field-programmable gate array. (b) Configuration of the IOC layout and (c) IOC package structure.

Fig. 2. IFOG prototype based on an IOC.

Fig. 3. Bias instabilities of IFOGs with IOC and discrete optical components.

Fig. 4. IFOG bias versus temperature.

Table 1. Measured Results of the IOC

Table 2. Measured Results of the IFOGs Based on an IOC