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(Fast-Axis Collimating Lens) J10919 SERIES NEW OVERVIEW The J10919 series FAC lens is an optical lens that collimates light spreading from a semiconductor laser in the fast-axis direction. Semiconductor lasers have a large divergence angle in the fast- axis direction, so the output light cannot be efficiently used unless collimated. The FAC lens collimates light spreading from a semi- conductor laser into a narrow beam with a radiation angle of sev- eral milliradians (mrad) or less so that the diverging light can be efficiently utilized. COLLIMATING LIGHT
FEATURES
OUTPUT DISTRIBUTION IMAGE WHEN INSTALLED TO LD BAR GAspheric micro-cylindrical lens GHighly efficient utilization of light from LD bar GSmall variations in characteristics allow mass production GMinimized smile and side lobes due to high-precision fabricating technology Fast axis Radiation angle spreading in elliptical cone shape Laser emitting point LD (laser diode) bar FAC lens Laser emitting point LD (laser diode) bar A A'Radiation angle axis -5 -4 -3 100 -2 -1 0 RADIATION ANGLE (mrad) RELATIVE INTENSITY (%) 12345 A–A' PROFILE
JUN. 2012 IP SPECIFICATIONS DIMENSIONAL OUTLINES (Unit: mm) MACHINING OPTIONS Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2012 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. HAMAMATSU PHOTONICS K.K. HAMAMATSU PHOTONICS K.K., Electron Tube Division 314-5, Shimokanzo, Iwata City, Shizuoka Pref., 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: info@hamamatsu.de United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: info@hamamatsu.co.uk North Europe: Hamamatsu Photonics Norden AB: Smidesvä gen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: info@hamamatsu.se Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 E-mail: info@hamamatsu.it www.hamamatsu.com Material Design Wavelength Refractive Index at 808 nm Length (L) Height (H) Width (W) Effective Focal Length (EFL) Back Focal Length (BFL) Effective Area Numeric Aperture (NA) Coating Efficiency Operating Ambient Temperature Min. Min. Parameter J10919-01 1.00 0.94 0.61 0.10 85 (±1.5 mrad) J10919-02 1.50 1.41 0.92 0.15 85 (±1.0 mrad) High refractive index glass (developed in-house) 808 1.812 12.00 90 % of output area 0.8 Anti-reflection film -30 to +60 Unit nm mm mm mm mm mm W H L OUTPUT SURFACE LASER INPUT SURFACE * See the above specification table for L, H and W. GChanging length GGrooving at edge GChanging focal length GChanging design wavelength Please feel free to contact us for modification. Example of grooving at edge