Abstract
Profiting from a breathing pulse design, we demonstrate a Kerr-lens mode locked non-collinear optical parametric oscillator, which is capable of delivering stable ultrabroadband signal spanning from 628 nm to 890 nm at -10 dB level.
Highlights
High repetition rate, ultrabroadband light sources in the near infrared spectral region have gained considerable research interest and emerged as a powerful basis for various applications, such as time-resolved spectroscopy, attoscience, and frequency comb generation [1]
By introducing a breathing pulse dispersion management scheme, we report the first experimental demonstration of a Kerr-lens mode locked (KLM) non-collinear optical parametric oscillators (OPOs) (KLM-NOPO) that emits an ultrabroadband signal spanning from 700 nm to 900 nm at the -10 dB level which would support sub-10 fs pulse durations
The pump laser has an average power of 7 W at a repetition rate of 50.2 MHz with a FWHM pulse duration 270 fs and a central wavelength 520 nm
Summary
Ultrabroadband light sources in the near infrared spectral region have gained considerable research interest and emerged as a powerful basis for various applications, such as time-resolved spectroscopy, attoscience, and frequency comb generation [1]. Kerr-lens mode locked (KLM) Ti:sapphire lasers oscillators remain the major workhorse of the research field due to the remarkable spectral bandwidth of this gain material. Optical parametric oscillators (OPOs) have rapidly developed over the last decade and are a promising candidate to generate high power broadband tunable radiations.
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