Linewidth Narrowing and Power Scaling of Single-Frequency 2.X $\mu{\rm m}$ GaSb-Based Semiconductor Disk Lasers

Kaspar, Sebastian; Rattunde, M.; Töpper, Tino; Rosener, B.; Manz, C.; Köhler, K.; Wagner, J.

doi:10.1109/jqe.2013.2242431

Cited by 23 publications

(13 citation statements)

References 12 publications

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“…The cavity was optimised for single-transverse-mode operation and kept short in order to assist with single-frequency operation. Active stabilisation of the laser was achieved either by locking it to a Fabry-Perot reference cavity using the side-of-fringe locking technique 8,9 , or by locking it to a fibre-cavity using the Pound-Drever-Hall (PDH) locking technique 13,14 . The sideof-fringe technique suffers from being unable to discern between fluctuations in the frequency of the laser, and fluctuations in the intensity of the laser itself, which will have a direct effect on the linewidth.…”

Section: Methodsmentioning

confidence: 99%

“…Wavelength versatility is afforded by wide portfolio of available semiconductor materials 2 , with SDLs having been reported ranging from the UV 5,6 to the mid-IR 7,8 . In order to further engineer these sources to provide the desired laser characteristics, intra-cavity elements can be deployed that allow for single-frequency operation, intracavity frequency conversion or modelocking.…”

Section: Introductionmentioning

confidence: 99%

“…The prevalent reference cavity used currently is a Fabry-Perot interferometer [7][8][9] , which is typically a confocal cavity formed of distinct high reflector mirrors mounted on a spacer material. Consequently, this is sensitive to vibrations, leading to fluctuations in the length of the cavity and therefore fluctuations in the resonant frequency of the reference cavity.…”

Section: Introductionmentioning

confidence: 99%

“…There is no standardised method or timescale for calculating linewidth, and linewidths have been quoted over a range of different timeframes in literature 5,8 , and can be calculated using a range of different methods 5,8,11 . Here we focus on calculating the linewidth by measuring the frequency noise power spectral density (PSD) 5,9 and provide a comparison to the self-heterodyne method 11 .…”

Section: Introductionmentioning

confidence: 99%

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

Hunter¹,

Jones

Schlosser

et al. 2018

Vertical External Cavity Surface Emitting Lasers (VECSELs) VIII

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This version is available at https://strathprints.strath.ac.uk/64545/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.An accepted author manuscript of the following research output: Hunter, C. R., Jones, B. E., Schlosser, P., Sørensen, S. ABSTRACTThis 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.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Hunter¹,

Jones

Schlosser

et al. 2018

Vertical External Cavity Surface Emitting Lasers (VECSELs) VIII

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“…On the other hand, at frequencies above 100 kHz the main frequency noise source is the pump intensity fluctuations that induce intensity noise into the VECSEL [227,229], which then transform into frequency noise due to the high Henry factor in semiconductor gain media [265]. Thus, the best performance is obtained by stabilizing both the cavity length and the multi-mode pump intensity fluctuations [264,266], although single transverse mode pump lasers have also been used in some low power demonstrations [67,267].…”

Section: Single-frequency Linewidthmentioning

confidence: 99%