This paper describes the signal conditioning electronics for a very low frequency (VLF) fiber optic receiving antenna. Homodyne demodulation is performed using phase generated carrier techniques. The receiver electronics had a baseband signal of 10 kHz to 60 kHz and a carrier frequency of 404 kHz. The noise floor measurement of the high frequency demodulation electronics yielded 11 microradian/√qHz at 12 kHz. The design, development, and testing of the receiver will be discussed. Also, the system architecture and design concepts of the fiber-optic antenna are presented.