807nm, 310W Laser Diode

Horizontal diode laser stacks from Jenoptik. These laser stacks have CW operation, are passively cooled with tap water, and have a wave guide.

The JOLD-310-HS-4L from Jenoptik is a horizontal diode laser stack that operates in continuous wave (cw) mode and is passively cooled with tap water. It has a maximum optical output power of 310 W and a center wavelength of 807-938 nm with a typical spectral bandwidth of 5 nm. The laser stack has a long lifetime of over 2 years and high reliability. It is designed for cleanroom class ISO 5 and non-condensing atmosphere operation conditions. The cooling system requires a flow rate of 2 l/min with a flow rate tolerance of ± 10% and a typical pressure drop of 60 kPa. The water temperature at inlet should be 15 °C. The laser stack is designed to be used with a particle filter of less than 100 μm and any materials that form galvanic elements with copper are not allowed. The laser stack has a waveguide thickness of 1 mm and length of 10.5 mm. It has anode and cathode connectors with thru holes and is sealed via o-rings.

Key Features:
- High optical output power of 310 W CW
- High efficiency, low divergences
- Long lifetime > 2 years, high reliability

Key Specifications:
- Operation Mode: CW
- Max Optical Output Power: 310 W
- Center Wavelength at 25 °C: 807-938 nm
- Center Wavelength Variation at 25 °C: 3-5 nm
- Typical Spectral Bandwidth (FWHM): 5 nm
- Maximum Spectral Bandwidth (FWHM): 6 nm
- Typical Operation Current: 92 A
- Maximum Operation Current: 102 A
- Typical Threshold Current: 20-15 A
- Maximum Threshold Current: 24-19 A
- Typical Slope: 4.4-4.1 W/A
- Minimum Slope: 3.7-3.5 W/A
- Maximum Operating Voltage: 8 V
- Anode, Cathode Connectors: Thru holes

Applications:
- Pumping of solid-state lasers
- Material processing