High gain, short length optical amplifier in heavily doped phosphate glass for miniature optics

Miniaturized integrated optical components have revolutionized the perspectives on usage and deployment of most optical devices. Ever since, the demand for short length and high power optical components has grown tremendously. Semiconductor based devices paved the route towards initial demands but soon faced several challenges such as high power, high bandwidth, low cost, hybrid devices and establishment of greener technologies [1,2]. In this work we demonstrate the production of a high gain, short length waveguide amplifiers and lasers produced by state of the art femtosecond (fs) laser micromachining.