red@ALESSIA.DEI.UNIPD.IT (Piergiorgio Sartor 274199) (04/04/91)
I need informations about GaAs chips for optical to/from electrical conversion for digital data transmission using optical fibers. I need also informations about optical fibers Ethernet and how to build a 'bus communication system' using optical fibers. Thanx in advance. -- red@alessia.dei.unipd.it
djdove@hprnd.rose.hp.com (Dan Dove) (04/16/91)
There is an 802.3 Fiber-optic specification which allows for Ethernet operation over fiber-optic media. The standard is specifically for Fiber-Optic Inter-Repeater Link, however, it's AUI interface is similar to that of the other media interfaces. The standard uses a STAR topology with an active repeater which performs re-timing and segmentation of un-used/bad ports. With regard to the electrical aspects of your question, there are a number of vendors that provide components which perform the optical-to-electrical conversion. In addition, there are also a few companies that provide threshold detection, amplification, and filtering in a chip. Good luck! Dan