Seven Hills International Limited

Seven Hills Raman Analyser

High Power Laser

Our frequency-stabilized, high power laser (patented) for laboratory, research, and OEM Raman Instrumentation

Our standard lasers deliver up to 300 mW of power coupled into a 100 mm fiber, and high power capability >1,500 mW is available (consult factory). The laser has a narrow linewidth, long lifetime, as well as excellent frequency and intensity stability. No ASE filtering or optical isolation is required for most applications. The laser is powered with a DC power supply. To download a printable version of the Spec sheet



Spatial Mode


Standard Wavelengths 670 nm, 785 nm, 830 nm, and 860 nm.
Polarization Horizontally polarized.
Wavelength Accuracy ± 0.1 nm
Wavelength Repeatability (ON/OFF) STD ~ 0.15 cm-1
Linewidth ~ 1 cm-1
Output Beam Free space (FS) or an SMA or FC fiber optical coupler
Power Output 110 mW to 1500 mW.
Power Monitor Photodiode
Power Requirements 3.5 Amps min. at 12 VDC.
Estimated Lifetime > 9,000 hours (> one year)
Warranty One year for 785 nm and greater wavelengths; 3,000 hours for 670 nm.
Temperature Controlled Via Thermoelectric (TE) coolers
Ambient Operating Temperature 15-35°C (Thermal shutdown protection for over temperature)
Environmental Protection Laser diode and optics sealed
Dimensions 9.25" x 2.5" x 4.25" (23 cm x 6 cm x 11 cm
Weight ~ 4.4 lbs. (2 kg)

High Power Coupling @ 785 nm
Output Power Fiber Core Diameter
150 mW to 250 mW 50 um
250 mW to 1200 mW 100 um
1200mW to 1500mW 200 um