Optoelectronics (OE) is perhaps older than electronics since it began in the late 1800's with the wireless Photophone that could transmit voice to ships. Over a century later, OE has been propelled to center stage as the core technology of the Internet. The modern Internet uses optoelectronics almost exclusively for long-haul links over continents and under the oceans to provide maximum bandwidth and reliability. This paper will describe basic OE devices, such as optical transmitters, and more complex integrated systems such as MOEMS (Micro-electro-mechanical Systems) switching devices. Electronics and photonics will be compared for similarities and differences at several levels. OE issues, especially those of assembly, will be discussed and basic optical fiber connection methods will be covered. OE is rapidly becoming a vital component of EMS business, but this is not a technology for the timid or the risk avoiders.
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