The paper considers the possibility to use the fiber-compatible photovoltaic converter РРС-4Е simultaneously as a detection photodetector for the combined transmission of photonic power and optical communication signals along a single fiber. We have studied the frequency transfer characteristics of the specialized converter РРС-4Е designed primarily for photovoltaic conversion. Full Text: PDF ReferencesPowering Remote Data Links over Fiber, www.lumentum.com, Lumentum LLC, 2015. DirectLink Basanskaya, A.: Electricity over Glass. Spectrum, IEEE, Vol. 40, No. 10, page 18, 2005. DirectLink Cohen, M.: Power-over-fibre drives remote data exchange. OPTO and Laser Europe, pages 27-29, 2006. DirectLink Yasui, T.; Ohwaki, J.; Mino, M.; Sakai, T.: A Stable 2-W Supply Optical-Powering System. 28th Photovoltaic Specialists Conference, pages 1614-1617, 2000. CrossRef Werthen, J.-G.: Powering Next Generation Networks by Laser Light over Fiber. Optical Fiber communication/National Fiber Optic Engineers Conference, pages 1-3, 2008. DirectLink Iniewski K., Medical Imaging: Principles, Detectors and Electronics, p. 292, New Jersey, 2009. DirectLink Kartalopoulos, S., Optical Bit Error Rate: An Estimation Methodology (2004) Willey- IEEE Press. DirectLink Electronic Devices and Circuits: Discrete and integrated, Chapter 14 Active filters, Denton J. Daily, Prentice Hall, 2001. DirectLink