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Compact sub-100-fs low-energy solid-state laser with gigahertz repetition rate

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Author(s):
Pinto, Vinicius Pereira ; Nogueira, Giovana Trevisan ; Yasuoka, Fatima Maria Mitsue ; Neto, Jarbas Caiado de Castro
Total Authors: 4
Document type: Journal article
Source: OPTICS AND LASER TECHNOLOGY; v. 192, p. 6-pg., 2025-12-01.
Abstract

This work presents a compact sub-100-fs, low-energy Kerr-lens modelocked Ti:Sapphire bulk laser oscillator operating at a 1-GHz repetition rate. The laser features a bow-tie cavity using dispersion-compensating mirrors and operates in a modelocked regime, achieving an average power of 0.94 W at 7.4 W of pump power. It produces a broadband emission of 31 nm centered at 756 nm, with low-energy pulses of 1 nJ, a temporal width of 61 fs, and a peak power of 15 kW. The compact laser setup shows great potential for various applications in spectroscopy and metrology. (AU)

FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 21/08202-8 - OPTIMIZATION OF RING CAVITY OF FEMTOSECONDS TI:SAPPHIRE WITH "CHIRPED MIRROR COATING" TECHNOLOGY
Grantee:Vinícius Pereira Pinto
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 15/15990-1 - Development of a colored graving and marking system of femtoseconds Ti:sapphire laser through the formation of nanostructures (ripples) on the surface of various materials
Grantee:Fatima Maria Mitsue Yasuoka
Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE