Characterization of non-planar ring oscillators at a wavelength of 1064 nm for high precision metrology

Abstract

Ultra-stable laser light is essential for high-precision interferometric measurements, in particular for the next generation of gravitational wave detectors, where high power lasers with unprecedented low power and frequency noise are demanded. Since the seed laser for high-power laser system has a large influence on the overall noise characteristics, the use of the lowest noise seed laser is beneficial. This study compares a newly developed seed laser, based on a non-planar ring oscillator (NPRO) design, at a wavelength of 1064 nm with two commercial NPROs and shows that the new laser exhibits ten times lower power and frequency noise. This noise advantage is retained even after subsequent amplification to 40 W.

References in corpus (9)

• Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
• On orbit performance of the GRACE Follow-On Laser Ranging Interferometer
• Frequency ratio of the ${}^{229\mathrm{m}}$Th nuclear isomeric transition and the ${}^{87}$Sr atomic clock
• First demonstration of 6 dB quantum noise reduction in a kilometer scale gravitational wave observatory
• Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit
• Strong Optomechanical Coupling at Room Temperature by Coherent Scattering
• Generation of squeezed vacuum state in the millihertz frequency band
• Characterization of Laser Systems at 1550 nm Wavelength for Future Gravitational Wave Detectors
• Design and Performance of the ALPS II Regeneration Cavity