Hamamatsu News 2 / 2017

OPTO-SEMICONDUCTOR PRODUCTS 18 News 2017 Vol. 2 LCOS-SLM Modules X11840/X13268/X13139 Series New ND Inspection Industry Security Optical Comms Semicon Prod. Analytical Measurement Drug Discovery Life Science Medical Academic Res. LCOS-SLM for high-power lasers Heat radiation type LCOS-SLM (Liquid Crystal on Silicon – Spatial Light Modulator) suitable for high-power laser processing was added to the current lineup. The incorporation of a water-cooled heatsink along with an elaborately designed mirror that improves reflectance suppresses temperature increase to less than one-tenth that of the previous product while providing high light resistance performance. Differences from previous type The power handling capability has been improved from 40 W/cm 2 to 210 W/cm 2 or more. They are expected to be used for laser processing applications such as laser marking with high-power lasers with 100 W class. Features „ „ Incorporation of a water-cooled heatsink to improve heat radiation efficiency „ „ Improved mirror reflectivity to suppress heat generation „ „ World’s highest light resistance performance based on design utilizing unique Hamamatsu know-how Improved light resistance A water-cooled heatsink was installed in the LCOS head section to improve light resistance. The heatsink suppresses the temperature increase caused by laser irradiation. X11840/X13268/X13139 series Specifications Parameter X11840-03WL/-03WR X11840-04WL/-04WR X13268-03WL/-03WR X13268-04WL/-04WR X13139-03WL/-03WR X13139-04WL/-04WR Unit Number of pixels 792 x 600 1,272 x 1,024 pixels Pixel pitch 20 12.5 12.5 μm Effective area size 15.8 x 12 9.9 x 7.5 15.9 x 12.8 mm Fill factor 98 96 96 % Interface Digital Video Interface (DVI-D) - Laser irradiation test result Phase modulation ( π rad) Input signal level 0 0 64 128 192 256 0.5 1.0 1.5 2.0 2.5 Laser irradiation test result 50 W (X11840-03WL: with heatsink) 50 W (X11840-03: without heatsink) 5 µW Laser test conditions Wavelength: 1,030 nm Beam diameter: φ 5.5 mm Irradiation level: Average output=50 W, per unit area=210 W/cm 2 With heatsink No phase modulation change due to high output laser irradiation m l i d I i l l l . .0 . . . i i i l ( : i i ) ( : i i ) l : Beam diameter: φ 5.5 mm I i i l l: , i 2 i i l i i l i i i