experimental media converter:
650nm simplex comprising EELD (edge emitting laser diode)

With the arrival of high quality and long term stable 650nm edge emitting laser diodes (EELD) with an average life time of about 10 years, POF technology now has very fast and nearly arbitrary bright light sources available. The brightness is limited by eye safety only.

Though EELD laser diodes are suitable for significantly higher data rates, DieMount started the development of systems with EELD with a simplex Fast Ethernet 100Mbps transmission system. The high optical transmit power of about +1dBm is the main advantage of EELD use. The receiver sensitivity of -20dBm completes a simplex Fast Etehrnet system that is distance limited by POF dispersion and not by POF attenuation.
The cable endfaces in this system must be prepared with great care by wet polishing in order to avoid optical crosstalk at the coupling point.

At present we test the practical serviceability of the POF transmission system with EELD.