ORPHEUS-VIS is an optical parametric amplifier (OPA) optimized for the generation of high-energy short-pulse VIS output. The laser system provides ultrashort pulses in the tuning range of 450 – 600 nm or 320 – 900 nm, depending on the chosen configuration, and reaches down to 250 nm with optional UV extension. The ORPHEUS-VIS system can be coupled with PHAROS or CARBIDE femtosecond pump lasers and can be pumped with up to 20 W average power and 1 mJ energy pulses, thus capable of providing up to tens of microjoules in VIS and microjoule-level output in UV.

ORPHEUS-VIS serves as an excellent high-repetition-rate source for ultrafast spectroscopy such as two-dimensional electronic spectroscopy (2DES), time-resolved photoemission spectroscopy, and many other applications in the visible spectral range.

MAIN OUTPUT

Model	ORPHEUS‑VIS
Configuration	Standard	Wide tuning range
Tuning range	450 – 600 nm	320 – 900 nm
Maximum pump power	20 W
Pump pulse energy	200 – 1000 µJ
Conversion efficiency at peak ¹⁾	> 1.5 % @ 450 – 600 nm	> 1.5 % @ 450 – 600 nm > 5% @ 650 – 900 nm > 0.5% @ 325 – 450 nm
Pulse duration	< 50 fs @ 500 – 600 nm	< 50 fs @ 500 – 600 nm < 55 fs @ 800 – 900 nm < 70 fs @ 650 – 800 nm
Spectral bandwidth ²⁾	200 – 700 cm^-1
Long-term power stability, 8h ³⁾	< 2% @ 500 nm

Specified as the percentage of pump power.
FWHM (full width at half maximum).
Expressed as NRMSD (normalized root mean squared deviation).

Optional extension (UV)

Model	ORPHEUS‑VIS
Tuning range	250 – 300 nm
Conversion efficiency at peak ¹⁾	> 0.15%
Spectral bandwidth ²⁾	200 – 600 cm^-1

Specified as the percentage of pump power.
FWHM (full width at half maximum).

Pump Laser Requirements

Model	ORPHEUS-VIS
Pump laser	PHAROS or CARBIDE
Center wavelength	1030 ± 10 nm
Maximum pump power	20 W
Repetition rate	Single-shot – 100 kHz
Pump pulse energy	200 – 1000 μJ
Pulse duration ¹⁾	180 – 300 fs