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Solid State Lasers XXII: Technology and Devices
New devices are required to provide effective tools for DIAL or LIDAR measurements from space, which will enable improved mapping of the concentration and distribution of CO 2 in our atmosphere. Here we present characteristics of Erdoped thin film waveguides, with an extended gain bandwidth, which are applicable to planar waveguide power amplifiers for wavelengths around the 1572 nm CO 2 absorption peaks. Planar waveguide films have been fabricated by sputtering of fluorophosphate and telluritedoi:10.1117/12.2004053 fatcat:ybi4pydsrnh6fbsfnqjobw7ggy