The purpose of OPTICS 2014, the International Conference on Optical Communication Systems, is to bring together researchers, engineers and practitioners interested on any of the optical communication components of an optical communication system, or the system itself. An optical communication system consists of a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal. Optical fiber is currently the main means for high-rate transmission in communication networks. In the last years, there is a great deal of ongoing research efforts that span the entire protocol stack of optical networks, with representative areas being architecture of optical components, optoelectronics, wavelength routing, energy efficiency, Quality of Service, hybrid optical-wireless networks etc. Ideas on how to analyze and approach problems by combining optical technologies, electronic interfaces, and communication technologies, either in the scope of R&D projects, engineering or network management, are welcome. Papers describing new methods or technologies, advanced prototypes, systems, tools and techniques and general survey papers indicating future directions are also encouraged. Papers describing original work are invited in any of the areas listed below. Accepted papers, presented at the conference by one of the authors, will be published in the Proceedings of OPTICS, with an ISBN. Acceptance will be based on quality, relevance and originality. Both full research reports and work-in-progress reports are welcome. There will be both oral and poster sessions. The best papers will be selected to appear either in an international journal or in a book to be published by Springer-Verlag. Special sessions, case-studies and tutorials dedicated to technical/scientific topics related to the main conference are also envisaged: researchers interested in organizing a special session, or companies interested in presenting their products/methodologies or researchers interested in holding a tutorial are invited to contact the conference secretariat.