Credo

The Credo is Sirah's radical new design for high repetition rate pulsed dye lasers, which sets a new standard. The compact laser is prefectly matched to DPSS lasers with high repetition rate and low or moderate pulse energy. All components, including the optional frequency doubler and amplifier stage, fit into a single housing. The dye solution circulates in closed circulation systems, which may be removed completely from the laser system. All controls are accessible from the top of the laser, so it can be operated from any side.

The Credo's resonator is optimized with respect to pump lasers with low energy per pulse. A unique combination of prism expansion and grazing incidence is used to reach an ultra-low laser threshold. The dye cells use entrance and exit windows with Brewster's angle for increased efficiency. The flow resistance is optimized for rapid exchange of the dye solution. Nevertheless, cells are easy to remove, without the necessity of tools.

Specifications

Resonator

• Tuning range: 545 nm .. 750 nm (2400 l/mm grating)
• Linewidth: 0.06 cm-1 (2400 l/mm grating)
• Efficiency: up to 27.5%
• Absolute wavelength accuracy: 30 pm
• Wavelength resetability: 5 pm
• Maximum pump power: 20 Watt

Amplifier

• Maximum pump power: 40 Watt

Second Harmonics Generation

• Typical efficiency: 15%

Software

• LabVIEW™ based control software
• Libraries for LabVIEW support available
• Free update policy
• Windows 2000™, Windows XP™, Windows Vista™ (32 bit) support

Highlights

• Very high efficiency.
• Special dye cells for high repetition rate applications with Brewster's angle beam entrance and exit for low losses, low flow resistance for rapid exchange of dye.
• Unique resonator design with low losses for ultra-low laser threshold.
• Circulator system with amply reservoir and cooling system.
• Optional frequency conversion stage within the same housing.
• Optional amplifier stage for high average power pump lasers (up to 40 Watt) in the same housing.
• Layout optimized for laser safety.
• Optional integration of a Spectra-Physics YHP series pumplaser.

Datasheets

Credo.PDF General data sheet..

Credo YHP.PDF Datasheet for YHP pumped Credo.

Details

Tuning curves for an Credo with built in amplifier pumped with a 40 Watt EdgeWave IS8II at 10 kHz repetition rate.

Credo with integrated YHP pump laser.

Detail of an Credo in operation.