MULTIGIGABIT MULTICHANNEL OPTICAL INTERCONNECTION MODULES FOR ASYNCHRONOUS TRANSFER MODE SWITCHING SYSTEMS

This paper describes 2.8-Gbit/s, 5-channel optical transmitter and rec eiver modules for board-to-board interconnection in asynchronous trans fer mode (ATM) switching systems, These modules are constructed of opt ical and electrical submodules, The optical submodule mainly consists of a multimode-fiber array and an optical device array, The electrical submodule is constructed by a multichip module technique with GaAs IC 's and multilayer ceramic substrates. The advantage of the submodule f abric is that the submodules are independently assembled after testing , Error-free 250-m transmission is successfully demonstrated over a wi de range of temperatures (from 25 degrees C to 60 degrees C), without automatic power control and automatic temperature control circuits in the optical transmitter module.