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Light Sources
Light source failure rate models (lp) for LEDs and laser diodes are contained in the reliability
prediction criteria contained in MIL-HDBK-217, Reliability Prediction of
Electronic Equipment. LEDs are generally
considered to be more reliable than laser diode devices.
Optical
Fibers, Cables and Connectors
Optical fibers, cables and connectors are
generally not considered the reliability-limiting factors in optoelectronic
applications. Adherence to the manufacturer’s recommendations is
encouraged. Exposure to extreme
environments, such as salt, heat and vibration (flexing and chaffing) can have
adverse effects on optical cables. The life cycle and environmental
considerations for electrical connectors reliability are applicable to like
portions of the optical connector assembly (see Connectors). It is recommended that fibers specified in
MIL-PRF-85045, and optical cables specified in MIL-PRF-49291, be given
consideration as
these
established products may be the most reliable and cost effective
choices.
Detector
and Couplers
Detector and coupler failure rate models
(lp)
for photodiodes, phototransistors, and optocouplers are contained in the
reliability prediction criteria contained in MIL-HDBK-