Optimization in scaling fiber-coupled laser-diode end-pumped lasers to higher power: influence of thermal effect

Optimalisasi penskalaan laser terpompa-ujung dioda laser tergandeng-serat ke daya yang lebih tinggi: pengaruh efek termal

Otimização no escalonamento de lasers bombeados longitudinalmente por diodo laser acoplado a fibra para potências mais elevadas: influência do efeito térmico

Clicks: 315
ID: 272748
1997
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Star

Ranked #1 of 2 articles by views in ieee journal of quantum electronics

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
The optimum mode-to-pump ratio in scaling fiber-coupled laser-diode end-pumped lasers to higher power has been investigated by including the thermal effect into the space-dependent rate equation analysis. The optical path difference (OPD) distribution has been derived as a function of the pump-beam quality, focus position of pumping light, and pump radius at the focal plane under the assumption that the end faces of the crystal are thermally insulated. The diffraction losses arising from thermally induced spherical aberration have been estimated by the Strehl intensity ratio. The present results for the optimum mode-to-pump ratio are markedly different from previous analyses in which thermal effects are neglected. Here, the optimum mode-to-pump ratio is a decreasing function of input pump power, and is less than unity in the case of a slightly high pump power. The practical example of a Nd:YAG laser pumped by a 13-W fiber-coupled laser diode is considered to confirm our physical analysis.
A razão ótima modo-bombeamento no escalonamento para potências mais altas de lasers bombeados longitudinalmente por diodo laser acoplado a fibra foi investigada por meio da inclusão do efeito térmico na análise das equações de taxa dependentes do espaço. A distribuição da diferença de caminho óptico (OPD) foi derivada em função da qualidade do feixe de bombeamento, da posição focal da luz de bombeamento e do raio de bombeamento no plano focal, sob a premissa de que as faces terminais do cristal são termicamente isoladas. As perdas por difração decorrentes da aberração esférica induzida termicamente foram estimadas pela razão de intensidade de Strehl. Os presentes resultados para a razão ótima modo-bombeamento são marcadamente diferentes de análises anteriores nas quais os efeitos térmicos são negligenciados. Aqui, a razão ótima modo-bombeamento é uma função decrescente da potência de bombeamento de entrada, sendo menor que a unidade no caso de uma potência de bombeamento ligeiramente alta. O exemplo prático de um laser de Nd:YAG bombeado por um diodo laser de 13 W acoplado a fibra é considerado para confirmar nossa análise física.
Reference Key
wang1997ieeeoptimization Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Y.F. Chen,T.M. Huang,C.F. Kao,C.L. Wang,S.C. Wang;Y.F. Chen;T.M. Huang;C.F. Kao;C.L. Wang;S.C. Wang;
Journal ieee journal of quantum electronics
Year 1997
DOI
10.1109/3.605566
URL
https://sciprofiles.com/publication/view/a7acf5cd5daa1575b836c6ae7b849c33
Keywords
insulation equations fiber lasers laser modes pump lasers power lasers optical pumping optical diffraction optical losses laser theory

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.