Integrated self-pumped optical frequency conversion and generation in semiconductor waveguides.

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Mid infrared gas detection has become increasingly important in areas such as environmental monitoring, clinical analysis, life sciences, security and the food industry. However at present there are no compact, room temperature and tunable sources readily available for the 2 - 5 micron part of the spectrum. Current approaches based on quantum cascade lasers and lead salt lasers offer limited tunability or require cooling.In this application we present a proposal for realizing an on-chip, electrically pumped, tunable mid IR source. The source will consist of an integrated optical parametric oscillator monolithically integrated with a semiconductor pump laser.The project will be carried out in collaboration with the University of Glasgow. Researchers at the University of Glasgow have pioneered the ability to monolithically integrate active and passive components on to a single chip.