Diamond Raman Laser Design and Performance

Mildren, Richard P.; Sabella, Alexander; Kitzler, Ondřej; Spence, David J.; McKay, Aaron

doi:10.1002/9783527648603.ch8

Cited by 44 publications

(33 citation statements)

References 85 publications

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“…The second-Stokes power and pump power decreased together as the pump wavelength was increased, with the second-Stokes laser efficiency is largely unchanged below 890 nm. This insensitivity to wavelength of the efficiency is as expected, with the Raman process having no phase-matching consideration, and weak dependence of gain on wavelength [14]. The steeper drop in the second-Stokes output for pump wavelengths greater than 890 nm was due to the cavity input mirror (M1) starting to reflect an increasing fraction of the pump power.…”

Section: Tuning the Second-stokes Output Wavelengthmentioning

confidence: 74%

“…From the measured bandwidth of 6 nm, we can estimate a 124 fs transform-limited pump pulse, and we confirmed that the pump pulses were slightly positively chirped. The pump beam was polarized parallel to the 111 axis of the diamond crystal to access the highest Raman gain, and the Stokes output was polarized parallel to the pump as expected [14]. The pump beam was focused through the input mirror M1 into the centre of the diamond crystal.…”

Section: Methodsmentioning

confidence: 99%

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Ultrafast second-Stokes diamond Raman laser

et al. 2016

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This version is available at https://strathprints.strath.ac.uk/56987/ 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. Ultrafast second-Stokes diamond Raman laser

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Section: Tuning the Second-stokes Output Wavelengthmentioning

confidence: 74%

Section: Methodsmentioning

confidence: 99%

Ultrafast second-Stokes diamond Raman laser

et al. 2016

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“…In the near IR the Raman gain coefficient of diamond is one of the highest known and has been recently studied by several authors 9,11 . There typically is a high degree of uncertainty when measuring absolute coefficient values and there is substantial variation in published results.…”

Section: Raman Gain Coefficientmentioning

confidence: 99%

“…To date, diamond Raman lasers (DRLs) have been investigated for wavelengths shorter than 2 μm (see for example the review of ref 9 ). Challenges associated with longer wavelength operation include a reduced Raman gain coefficient, the loss due to multi-phonon absorption and less-mature optical coating technologies.…”

Section: Introductionmentioning

confidence: 99%

Mid-infrared diamond Raman laser with tuneable output

2014

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We present an OPO pumped mid IR diamond Raman laser with tuneable output from 3.49 μm to 3.78 μm, which to our knowledge is the longest wavelength produced in a solid state Raman laser. Up to 59 μJ is generated with a conversion efficiency of 10%. We also determine the Raman gain coefficient of diamond at 1.864 μm through measurement of the amplification of a seed signal. With pump and probe polarisations aligned with the <110> crystal axes a value of 4.8 cm/GW is measured, which corresponds to 6.4 cm/GW for polarisation aligned with the <111> crystal axes. Achievable conversion efficiencies were limited by multi-phonon absorption at the Stokes wavelength. Numerical modelling shows that increasing the output coupling factor of the cavity reduces the impact of multi-phonon absorption and leads to higher conversion efficiencies. By reducing the output coupler reflectivity from 55% to 5% and eliminating Fresnel reflections from cavity components, 30% conversion efficiency (44% quantum conversion efficiency) is predicted.

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“…Due to recent advances in synthetic growth, diamond has emerged as the 'new' Raman laser material with outstanding performance prospects [5]. As well as having a very high Raman gain coefficient, by far and away diamond's major advantage are its thermal properties.…”

Section: Introductionmentioning

confidence: 99%