Abstract
| Original language | English |
|---|---|
| Article number | 1700408 |
| Number of pages | 8 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 54 |
| Issue number | 6 |
| Early online date | 11 Oct 2018 |
| DOIs | |
| Publication status | Published - 31 Dec 2018 |
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Keywords
- diamond Raman lasers
- Raman scattering
- solid lasers
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Energy scaling, second Stokes oscillation and Raman gain-guiding in monolithic diamond Raman lasers. / Savitski, Vasili G.; Demetriou, Giorgos; Reilly, Sean; Liu, Hangyu; Gu, Erdan; Dawson, Martin D.; Kemp, Alan.
In: IEEE Journal of Quantum Electronics, Vol. 54, No. 6, 1700408, 31.12.2018.Research output: Contribution to journal › Article
TY - JOUR
T1 - Energy scaling, second Stokes oscillation and Raman gain-guiding in monolithic diamond Raman lasers
AU - Savitski, Vasili G.
AU - Demetriou, Giorgos
AU - Reilly, Sean
AU - Liu, Hangyu
AU - Gu, Erdan
AU - Dawson, Martin D.
AU - Kemp, Alan
N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
PY - 2018/12/31
Y1 - 2018/12/31
N2 - Energy scaling of the 1st Stokes oscillation is compared in micro-lensed and plane-plane monolithic diamond Raman lasers under 532 nm pumping. A maximum Raman pulse energy of 92 µJ at 573 nm was achieved with the micro-lensed device, while in a plane-plane configuration the maximum Raman pulse energy was 3.1 mJ. 2nd Stokes generation at 620 nm in 2 and 1 mm long micro-lensed monolithic diamond Raman lasers is also reported. The best conversion efficiency from the pump at 532 nm, namely 63 %, was observed in a 2 mm long crystal at the pump pulse intensity of 4.5 GW/cm2. By measuring the output Raman laser beam caustic it was found that the 2nd Stokes intracavity beam radius at the output coupler of the micro-lensed device is at least two times smaller than that expected from the ABCD matrix calculations of the resonator mode. A Raman gain-guiding mechanism is suggested to explain this difference.
AB - Energy scaling of the 1st Stokes oscillation is compared in micro-lensed and plane-plane monolithic diamond Raman lasers under 532 nm pumping. A maximum Raman pulse energy of 92 µJ at 573 nm was achieved with the micro-lensed device, while in a plane-plane configuration the maximum Raman pulse energy was 3.1 mJ. 2nd Stokes generation at 620 nm in 2 and 1 mm long micro-lensed monolithic diamond Raman lasers is also reported. The best conversion efficiency from the pump at 532 nm, namely 63 %, was observed in a 2 mm long crystal at the pump pulse intensity of 4.5 GW/cm2. By measuring the output Raman laser beam caustic it was found that the 2nd Stokes intracavity beam radius at the output coupler of the micro-lensed device is at least two times smaller than that expected from the ABCD matrix calculations of the resonator mode. A Raman gain-guiding mechanism is suggested to explain this difference.
KW - diamond Raman lasers
KW - Raman scattering
KW - solid lasers
UR - https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=3
U2 - 10.1109/JQE.2018.2875561
DO - 10.1109/JQE.2018.2875561
M3 - Article
VL - 54
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
SN - 0018-9197
IS - 6
M1 - 1700408
ER -