We propose the SBIR Phase II effort to develop and space-qualify a 1.06 micron high reliability frequency-stabilized CW laser source that fully satisfies the requirements of this SBIR opportunity (Lidar System Components) . Our recommended approach builds on extensive experience developed through numerous spaceflight programs, and using single frequency laser sources in the near infrared, both for aerospace and commercial applications. Our technical approach is based on emerging technology, spawned by the telecom industry that is only now reaching the maturity level where space qualification can be undertaken. NASA requires highly reliable frequency stabilized laser sources for a variety of ongoing and planned missions including LISA and GRACE. The Phase II program plans to place emphasis on the material selection, design verification and radiation testing to the proposed space laser. The proposed Phase II effort seeks to demonstrate the feasibility to space-qualify a high reliability frequency-stabilized laser source, to advance current space-based laser to TRL 6 level and to present a clear path to build a space-based ultrastable laser source for a 10 year space mission.