CW LASER DIODES L7910 PRELIMINARY DATA Peak Emission Wavelength 755 nm, Radiant Flux 4 mW (CW) FEATURES Radiant flux (CW) : 4 mW Peak Emission Wavelength : 755 nm 5 nm Emitting Area Size : 5 m x 1 m High Stability Long life Compact APPLICATIONS Printing Measuring Instrument Medical Instrument ABSOLUTE MAXIMUM RATINGS (Top(c) = 38 C) Parameter Radiant Flux Reverse Voltage (LD) Reverse Voltage (PD) Operating Temperature Storage Temperature Unit mW V V C C Value 6 2 20 -10 to +70 -20 to +80 Symbol e Vrl Vrd Top(c) Tstg CHARACTERISTICS (Top(c) = 38 C) Parameter Symbol Operating Current Peak Emission Wavelength Forward Voltage Horizontal Beam Spread Angle Vertical Lasing Threshold Current Monitor PD Current PD Cutoff Frequency Iop p Vf // Ith Im fc Conditions e = 4 mW e = 4 mW FWHM - e = 4 mW , Vrd = 15 V Vrd = 15 V (-3dB) Value Min. Typ. Max. 30 750 1.6 5 31 15 0.5 30 57 755 1.9 7 36 35 1.5 50 76 760 2.2 10 41 50 3.5 - Unit mA nm V degree degree mA mA MHz 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. (c)2007 Hamamatsu Photonics K.K. CW LASER DIODES L7910 Figure 1: Radiant Flux vs. Operating Current (Typ.) Figure 2: Radiant Flux vs. Monitor Current (Typ.) ( Top(c) = 38 C ) 8 7 2.5 Monitor Current I m (mA) Radiant Flux e (W) ( Top(c) = 38 C ) 3.0 6 5 4 3 2 2.0 1.5 1.0 0.5 1 0.0 0 0 10 20 30 40 70 60 50 80 Operating Current I op (mA) Figure 3-1: Directivity (Parallel Direction) Relative Radiant Flux (%) Relative Radiant Flux (%) Top View 20 -40 -30 -20 -10 0 10 7 6 5 Vertical Direction 40 0 4 20 30 (e=4 mW, Top(c) = 38 C) 100 Parallel Direction 60 3 2 Radiant Flux e (mW) (*Example from Measurement) (e=4 mW, Top(c) = 38 C) 80 1 Figure 3-2: Directivity (Vertical Direction) (*Example from Measurement) 100 0 40 80 60 Top View 40 20 0 -40 -30 -20 -10 0 10 20 30 40 Angle (degree) Angle (degree) Figure 4: Dimensional Outline (Unit: mm) 9.0 +0 -0.1 Glass Window 5.7 0.2 2.4 1.5 7.0 0.5 5.1 0.5 2.8 0.3 LD Chip 0.45 2.54 (Pin Connection) Side View 1.0 0.4 Common to Case PD LD LD Cathode PD Anode PD Anode LD Cathode Bottom View Common to Case http://jp.hamamatsu.com HAMAMATSU PHOTONICS K.K., Laser Group, Sales Dept. 1-8-3, Shinmiyakoda, Kita-ku, Hamamatsu City, Shizuoka, 431-2103, Japan, Telephone: (81)53-484-1301, Fax: (81)53-484-1302, E-mail: laser-g@lsr.hpk.co.jp U.S.A.: Hamamatsu Corporation:360 Foothill Road, P.O. BOX 6910, Bridgewater, N.J. 08807-0910, U.S.A.Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: usa@hamamatsu.com 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 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33(1) 69 53 71 00, Fax: 33(1) 69 53 71 10, E-mail: infos@hamamatsu.fr United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44)1707-294888, Fax: (44)1707-325777, E-mail: info@hamamatsu.co.uk North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01, E-mail: info@hamamatsu.se Cat. No. LLD1033E02 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 DEC. 2007