With the LIGO announcement of the first direct detection of gravitationalwaves (GWs), the GW Astronomy was formally ushered into our age. Afterone-hundred years of theoretical investigation and fifty years of experimentalendeavor, this is a historical landmark not just for physics and astronomy, butalso for industry and manufacturing. The challenge and opportunity for industryis precision and innovative manufacturing in large size - production of largeand homogeneous optical components, optical diagnosis of large components, highreflectance dielectric coating on large mirrors, manufacturing of componentsfor ultrahigh vacuum of large volume, manufacturing of high attenuatingvibration isolation system, production of high-power high-stabilitysingle-frequency lasers, production of high-resolution positioning systems etc.In this talk, we address the requirements and methods to satisfy theserequirements. Optical diagnosis of large optical components requires largephase-shifting interferometer; the 1.06 {\mu}m Phase Shifting Interferometerfor testing LIGO optics is an example. High quality mirrors are crucial forlaser interferometric GW detection, so as for ring laser gyroscope, highprecision laser stabilization via optical cavities, quantum optomechanics,cavity quantum electrodynamics and vacuum birefringence measurement. There arestringent requirements on the substrate materials and coating methods. Forcryogenic GW interferometer, appropriate coating on sapphire or silicon arerequired for good thermal and homogeneity properties. Large ultrahigh vacuumcomponents and high attenuating vibration system together with an efficientmetrology system are required and will be addressed. For space interferometry,drag-free technology is well-developed; weak-light phase locking isdemonstrated in the laboratories while weak-light manipulation technology stillneeds developments.
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