Cobra

Linewidth Specifications

Dispersion Option Tuning Range Linewidth Efficiency
1) for wavelength < 660 nm
2) resonator and pre-amplifier at 570 nm (peak Rhodamine 6G) pumped at 532 nm
3) resonator and pre-amplifier at 625 nm (peak DCM) pumped at 532 nm
4) exact linewidth depends weakly on wavelength; value given for 450 nm
Three Quartz Prisms 370..920 nm 0.15 nm 1) 5 cm-1 @ 570 nm 24 % 2)
1800 lines / mm, 60 mm 400..920 nm 3.6 pm 0.1 cm-1 @ 625 nm 12 % 3)
1800 lines / mm, 90 mm 400..920 nm 2.4 pm 0.06 cm-1 @ 625 nm 12 % 3)
2400 lines / mm, 60 mm 350..760 nm 2.7 pm 0.08 cm-1 @ 570 nm 12 % 2)
2400 lines / mm, 90 mm 350..760 nm 1.8 pm 0.06 cm-1 @ 570 nm 12 % 2)
3000 lines / mm, 60 mm 350..620 nm 2.0 pm 0.06 cm-1 @ 570 nm 12 % 2)
3000 lines / mm, 90 mm 350..620 nm 1.4 pm 0.05 cm-1 @ 570 nm 12 % 2)
Dual 1800 lines / mm 410..900 nm 1.7 pm 4) 0.05 cm-1 @ 625 nm 10 % 3)
Dual 2400 lines / mm 370..710 nm 1.2 pm 4) 0.04 cm-1 @ 570 nm 10 % 3)
Dual 3000 lines / mm 370..580 nm 1.0 pm 4) 0.03 cm-1 @ 570 nm 10 % 3)

Wavelength and Beam Characteristics

Absolute Wavelength Accuracy < 15 pm (prism models: 0.5 nm)
Wavelength Resetability < 2 pm (prism models: 00.5 nm)
Wavelength Stability < 1.5 pm / °C (prism models: 10 pm / °C)
Divergence (typical) 1 mrad
Polarization > 98 % (vertical)
ASE < 0.5 %
Pump Energies (grating models) 8..150 mJ @ 532 nm, 8..130 mJ @ 355 nm
Pump Energies (prism models) 8..230 mJ @ 532 nm, 8..210 mJ @ 355 nm

Requirements

Voltage 110..230 V, single phase, 50 Hz / 60 Hz
Computer Control XP / Vista / Windows 7 / Windows 8 / Windows 10 (32 & 64 bit), USB port

Options

Double wavelength pump optic (532 nm, 355 nm)
Frequency doubling / mixing units (external housing)
Automatic exchange of gratings
Piezo wavelength control
Dynamic mode option
Double bandwidth option

 

Optical Layout

Cobra Optical Layout

Dimensions

Cobra Dimensions

All Dimensions in mm. Specifications are subject to change without notice.

Literature & Downloads

Datasheet Cobra
Datasheet Piezo Wavelength Control
Datasheet Grating Lift
Datasheet Double Bandwidth
Video: Grating Lift
Video: Swapping Pump Optics
Video: Dye Cell Mechanics