Yb:KGW self-Raman laser with 89 cm(-1) Stokes shift and more than 32% diode-to-Stokes optical efficiency

Autor(es)

Ferreira, Merilyn S. ^[1] ; Wetter, Niklaus U. ^[1]

Afiliação do(s) autor(es)

^[1] IPEN CNEN SP, Ctr Lasers & Aplicacoes, Av Prof Lineu Prestes 2242, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: OPTICS AND LASER TECHNOLOGY; v. 121, JAN 2019.
• Citações Web of Science: 0

Resumo

We report on a Yb3+:KGW self-Raman laser operating at 1096 nm. A 100 mu m fiber-coupled diode end-pumped configuration is used to generate a fundamental emission wavelength that strongly depends on internal resonator losses. Stokes emission at 1096 nm is achieved with a slope efficiency of 42 +/- 8%, an optical conversion efficiency of more than 32% and a maximum output power of 4.5 W for quasi-continuous operation (1 ms pulses). The explored Stokes conversion of 89 cm(-1) shows excellent laser characteristics, indicating that this still little explored Stokes shift could pave the way to continuous-wave Raman frequency-comb lasers. (AU)

• Processo FAPESP: 17/10765-5 - Lasers com alta eficiência e baixo limiar de operação em meios espalhadores e transparentes
• Beneficiário: Niklaus Ursus Wetter
• Modalidade de apoio: Auxílio à Pesquisa - Regular