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Vibration-tolerant narrow-linewidth semiconductor disk laser using novel frequency-stabilisation schemes

: Hunter, C.R.; Jones, B.E.; Schlosser, P.; Sørensen, S.T.; Strain, M.J.; McKnight, L.J.


Chilla, J.L. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Vertical External Cavity Surface Emitting Lasers (VECSELs) VIII : 29-30 January 2018, San Francisco, California, United States
Bellingham, WA: SPIE, 2018 (Proceedings of SPIE 10515)
ISBN: 978-1-5106-1515-1
ISBN: 978-1-5106-1516-8
Paper 105150Q, 8 pp.
Conference "Vertical External Cavity Surface Emitting Lasers" (VECSELs) <8, 2017, San Francisco/Calif.>
Conference "Laser Source Technologies, Industrial Lasers, and Applications" (LASE) <2018, San Francisco/Calif.>
Photonics West Conference <2018, San Francisco/Calif.>
Conference Paper
Fraunhofer CAP ()

This paper will present developments in narrow-linewidth semiconductor-disk-laser systems using novel frequencystabilisation schemes for reduced sensitivity to mechanical vibrations, a critical requirement for mobile applications. Narrow-linewidth single-frequency lasers are required for a range of applications including metrology and highresolution spectroscopy. Stabilisation of the laser was achieved using a monolithic fibre-optic ring resonator with free spectral range of 181 MHz and finesse of 52 to act as passive reference cavity for the laser. Such a cavity can operate over a broad wavelength range and is immune to a wide band of vibrational frequency noise due to its monolithic implementation. The frequency noise of the locked system has been measured and compared to typical Fabry-Perotlocked lasers using vibration equipment to simulate harsh environments, and analysed here. Locked linewidths of < 40 kHz have been achieved. These developments offer a portable, narrow-linewidth laser system for harsh environments that can be flexibly designed for a range of applications.