40 meter laboratory near-term milestones (spring, summer, fall 2006) * Continue development and implementation of more robust, automated, "deterministic” locking strategies * Learn how to tune the detector response for optimal sensitivity and control, by measuring and adjusting length signal extraction parameters. * Develop and test new length signal extraction schemes using lower frequency RF * Prototype a DC readout system, including new PCIX-based controls architecture. Understand the noise contributions. * Understand contributions to the GW displacement noise. * Reduce technical noise sources to achieve quantum-limited sensitivity at high frequencies. * Prototype ASC/WFS solutions for AdvLIGO (need more designer people) * Continue development and application of e2e and Optickle QN frequency-domain models. All the above activities feed directly into AdLIGO Interferometer Sensing and Control subsystem development. ---------------------------------------------------------------------------------------------------------------- * Study the injection of squeezed vacuum into the 40m asymmetric port, using MIT squeezer (beyond AdvLIGO?)