Environmental tests of optical links and YAG lasers

Research was performed to determine the performance characteristics of emitter-coupled logic compatible phase modulators (1.3 micrometers and 1.5 micrometers ), bias control modulators (1.3 micrometers ), and diode pumped Nd:YAG lasers in various environments. The stability of the materials and the performance of the devices when exposed to elevated temperatures, vibration and humidity were examined to determine and assess potential failure mechanisms. Results of the research has led to improvements in the modulator packages and laser mounting structures.