Single-frequency 620 nm diamond laser at high power, stabilized via harmonic self-suppression and spatial-hole-burning-free gain

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Abstract

Single longitudinal mode (SLM) operation of a 620 nm diamond Raman laser is demonstrated in a standing-wave cavity that includes a second-harmonic generation element. Mode competition provided by the harmonic mixing is shown to greatly increase mode stability, in addition to the benefits of the spatial-hole-burning-free gain medium. Using a multi-longitudinal mode 1064 nm Nd:YAG pump laser of power 321 W and linewidth 3.3 GHz, SLM powers of 38 W at 620 nm and 11.8 W at 1240 nm were obtained. The results indicate that simple standing-wave oscillators pumped by multimode Yb or Nd pumps compose a promising practical route towards the generation of high-power SLM beams in the yellow-red part of the spectrum.

LanguageEnglish
Pages839-842
Number of pages4
JournalOptics Letters
Volume44
Issue number4
DOIs
Publication statusPublished - 15 Feb 2019

Cite this

@article{cdc697d43bf548b9ad54c951cfce01e3,
title = "Single-frequency 620 nm diamond laser at high power, stabilized via harmonic self-suppression and spatial-hole-burning-free gain",
abstract = "Single longitudinal mode (SLM) operation of a 620 nm diamond Raman laser is demonstrated in a standing-wave cavity that includes a second-harmonic generation element. Mode competition provided by the harmonic mixing is shown to greatly increase mode stability, in addition to the benefits of the spatial-hole-burning-free gain medium. Using a multi-longitudinal mode 1064 nm Nd:YAG pump laser of power 321 W and linewidth 3.3 GHz, SLM powers of 38 W at 620 nm and 11.8 W at 1240 nm were obtained. The results indicate that simple standing-wave oscillators pumped by multimode Yb or Nd pumps compose a promising practical route towards the generation of high-power SLM beams in the yellow-red part of the spectrum.",
author = "Xuezong Yang and Ondrej Kitzler and Spence, {David J.} and Williams, {Robert J.} and Zhenxu Bai and Soumya Sarang and Lei Zhang and Yan Feng and Mildren, {Richard P.}",
year = "2019",
month = "2",
day = "15",
doi = "10.1364/OL.44.000839",
language = "English",
volume = "44",
pages = "839--842",
journal = "Optics Letters",
issn = "0146-9592",
publisher = "OPTICAL SOC AMER",
number = "4",

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TY - JOUR

T1 - Single-frequency 620 nm diamond laser at high power, stabilized via harmonic self-suppression and spatial-hole-burning-free gain

AU - Yang, Xuezong

AU - Kitzler, Ondrej

AU - Spence, David J.

AU - Williams, Robert J.

AU - Bai, Zhenxu

AU - Sarang, Soumya

AU - Zhang, Lei

AU - Feng, Yan

AU - Mildren, Richard P.

PY - 2019/2/15

Y1 - 2019/2/15

N2 - Single longitudinal mode (SLM) operation of a 620 nm diamond Raman laser is demonstrated in a standing-wave cavity that includes a second-harmonic generation element. Mode competition provided by the harmonic mixing is shown to greatly increase mode stability, in addition to the benefits of the spatial-hole-burning-free gain medium. Using a multi-longitudinal mode 1064 nm Nd:YAG pump laser of power 321 W and linewidth 3.3 GHz, SLM powers of 38 W at 620 nm and 11.8 W at 1240 nm were obtained. The results indicate that simple standing-wave oscillators pumped by multimode Yb or Nd pumps compose a promising practical route towards the generation of high-power SLM beams in the yellow-red part of the spectrum.

AB - Single longitudinal mode (SLM) operation of a 620 nm diamond Raman laser is demonstrated in a standing-wave cavity that includes a second-harmonic generation element. Mode competition provided by the harmonic mixing is shown to greatly increase mode stability, in addition to the benefits of the spatial-hole-burning-free gain medium. Using a multi-longitudinal mode 1064 nm Nd:YAG pump laser of power 321 W and linewidth 3.3 GHz, SLM powers of 38 W at 620 nm and 11.8 W at 1240 nm were obtained. The results indicate that simple standing-wave oscillators pumped by multimode Yb or Nd pumps compose a promising practical route towards the generation of high-power SLM beams in the yellow-red part of the spectrum.

UR - http://www.scopus.com/inward/record.url?scp=85061524767&partnerID=8YFLogxK

UR - http://purl.org/au-research/grants/arc/DP150102054

U2 - 10.1364/OL.44.000839

DO - 10.1364/OL.44.000839

M3 - Article

VL - 44

SP - 839

EP - 842

JO - Optics Letters

T2 - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 4

ER -