- Volume 10 Issue 1
In this paper, we investigated the signal-to-noise ratio improvement in a differential detector, which is a function of the optical noise coupling ratio and the differential gain ratio. A differential detector consists of two photodiodes and a differential amplifier. The differential detector reduced the noise component and improved the signal-to-noise ratio by about 20 dB when the differential gain ratio equals to the optical noise coupling ratio. The differential detector is very effective in removing the environmental optical noise or interference from an adjacent optical channel. This method is also effective when the noise wavelength is similar to the signal.
- 한국전자파학회논문지 v.9 no.5 실내 무선광연결에서 차동증폭기를 이용한 혼신 및 잡음의 감소 이성호;강희창
- Optical and Quantum Electronics v.29 Indoor optical wireless systems-a review A. M. Street;P. N. Stavririnou;D. C. O'Brien;D. J. Edwards
- Applied Optics. v.34 no.19 Link design for nondirected wireless infrared communications John R. Barry;Joseph M. Kahn
- IEEE Network Magazine v.November High-speed nondirective optical communication for wireless network John R. Barry;Joseph M. Kahn;Edwards A. Lee;David G. Messerschmitt
- IEEE Communication Magazine v.25 no.8 High-speed infrared local wireless communication T. S. Chu;M. J. Gans
- Proceedings of the IEEE v.67 no.11 Wireless in-house data communication via diffuse infrared radiation Fritz R. Gfeller;Urs Bapst