Development of a Single-Frequency Narrow Linewidth 1.5mm Semiconductor Laser Suitable for Spaceflight Operation Project

Description

In this Phase II proposal we plan to design and develop a semiconductor, low phase/frequency noise, single-frequency, external cavity semiconductor laser (ECL) emitting at 1064 nm for use in high-precision outer space measurement NASA missions. Many NASA space missions rely on the utilization of Light Detection and Ranging (LIDAR) techniques for atmospheric analysis and/or surface topography and distance measurement. A key and vital component of any LIDAR system is the laser source. Single frequency lasers are highly desirable for use in planned missions using LIDAR systems. The laser is based on the PLANEX laser technology developed by Redfern Integrated Optics Inc. (RIO). The PLANEX 1550 nm laser was originally designed and developed for terrestrial applications but it has been experimentally demonstrated to have a sufficiently low level of frequency and intensity noise to be suitable for precision measurement applications, such as those encountered in spaceborne LIDAR. For the Phase II effort, we propose to carry out a plan to design and develop a 1064 nm PLANEX laser for NASA LIDAR applications which will be based on the RIO PLANEX ECL originally designed for emission at 1550 nm, but need re-design for different semiconductor materials, fabrication processes and opto-electronic packaging for operation at 1064 nm wavelength in outer space.

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