[ YTB-SC0017-02 ] 2012/10/16 Violet Laser Diode for External Cavity NDVA316T Test Sample Features Outline Dimension • For External Cavity Laser with Low Reflection Coating on front facet • Optical Output Power: 45mW • Can Type: 5.6 mm Floating Mounted with Photo Diode and Zener Diode Unit (mm) Absolute Maximum Ratings Item Symbol Optical Output Power LD Forward Current Allowable Reverse Current PD Reverse Voltage Storage Temperature Operating Case Temperature Po If Ir (LD) Vr (PD) Tstg Tc Absolute Maximum Ratings 65 120 85 20 -25 ~ 75 10 ~ 55 Initial Electrical/Optical Characteristics Item Condition Symbol Min Typ. Optical Output Power Peak Wavelength Threshold Current Operating Current Slope Efficiency Operating Voltage CW Po=45mW CW Po=45mW CW Po=45mW Beam Divergence*2 Po=45mW Po p Ith Iop Vop // 414 7 15 -2.0 -2.5 - 45 70 1.9 4.6 - Unit mW mA mA V C C (Ta=23C *1) Max Unit 45 mW 420 nm mA mA W/A V 12 deg. 28 deg. 2.0 deg. 2.5 deg. 1 mA ( ) are reference figures Pin Connection // Monitor Current*3 Po=20mW Im *1 There is some range in ambient temperature. This model has a zener diode built in *2 Full angle at 50% from peak intensity *3 Monitor Current is short time power reference purpose only. Not guaranteed for as protection circuit against static electricity. accuracy. This value must be affected intensely by feedback from composing optics. All figures in this specification are measured by Nichia's method and may contain measurement deviations. Diffractive feedback efficiency to the Laser diode must be limited less than 30 % under the External cavity configuration. This model is Test Sample for evaluation or design purpose only. Life time is not guaranteed. The above specifications are for reference purpose only and subjected to change without prior notice. Safety of Laser light Laser Light can damege the human eyes and skin. Do not expose the eye or skin to any laser light directly and/or through optical lens. When handling the LDs, wear appropriate safety glasses to prevent laser light, even any reflections from entering to the eye. Focused laser beam through optical instruments will increase the chance of eye hazard. These LDs are classified in Class 4 of IEC60825-1 and 21 CFR Part 1040.10 Safety Standards. It is absolutely necessary to take overall safety measures against User's modules, equipment and systems into which Nichia LDs are incorporated and/or integrated. Emission Point Accuracy Angle Po=45mW NICHIA CORPORATION http://www.nichia.co.jp HEADQUARTERS 491 Oka, Kaminaka-Cho, Anan-Shi, TOKUSHIMA 774-8601, JAPAN PHONE: +81-884-22-2311 FAX: +81-884-21-0148 CONTACT TOKYO SALES OFFICE 13F Tamachi Center Building 34-7, Shiba 5-Chome, Minato-Ku, TOKYO 108-0014, JAPAN PHONE: +81-3-3456-3108 FAX: +81-3-5440-7330 -1- [ YTB-SC0017-02 ] 2012/10/16 Typical Initial Electrical/Optical Characteristics Forward Voltage vs. Forward Current Optical Output Power vs. Forward Current 50 5 5 Ta=23deg.C 4 30 3 20 2 Po 10 SE 0 20 40 60 4 Forward Voltage Vf [V] 40 Slope Efficiency SE [-] Optical Output Power Po [mW] Ta=23deg.C 3 2 1 1 0 0 80 0 Current[mA] 20 40 60 80 Forward Current If [mA] Far Field Pattern Spectrum 1 Ta=23deg.C Po=45mW Optical Intensity [5dB/div] . Optical Intensity [-] . θ⊥ 0.5 0 -40 -30 -20 Ta=23deg.C Po=45mW θ∥ -10 0 10 20 30 410 40 412 414 416 Wavelength [nm] Angle θ [°] -2- 418 420 [ YTB-SC0017-02 ] 2012/10/16 Cautions (1) Operating method The LD shall change its forward voltage requirement and optical output power according to temperature change. Also, the LD will require more operation current to maintain same output power as it degrades. The use of heat sink is strongly recommended to reduce increases in temperature. Confirm that electrical spike current generated by switching on and off does not exceed the maximum operating current level specified herein above as absolute max rating. Also, employ appropriate countermeasures to reduce chattering and/or overshooting in the Circuit. (2) Static Electricity Static electricity or electrical surges will reduce and degrade the reliability of the LDs. It is recommended to use a wrist strap or anti-electrostatic glove when handling the Product. (3) Absolute Maximum Rating Active layer of LDs shall have high current density and generate high electric field during its operation. prevent excessive damage, the LD must be operated strictly below Absolute Max Rating. In order to (4) Others Nichia LDs described in this brochure are intended to be used for ordinary electronic equipment (such as office equipment, communications equipment, measurement instruments and household appliances). Consult Nichia’s sales staff in advance for information on the applications in which exceptional quality and reliability are required, particularly when the failure or malfunction of the LDs may directly jeopardize life or health (such as for airplanes, aerospace, submersible repeaters, nuclear reactor control systems, automobiles, traffic control equipment, life support systems and safety devices). The Purchaser must acknowledge that any LD can be failed statically and must design its equipments fail safe design. Prior to use of the LD, please confirm that the LD, as described in Nichia’s specifications, meets the life expectancy needs of, and provides the features required by the Circuit and any related modules, equipment and/or systems. Nichia prohibit Purchaser from reverse engineering, disassembling, or taking any other steps to derive the structure or design of the LD. The appearance and specifications of the product may be modified for improvement without notice. The formal specifications must be exchanged and signed by both parties before large volume purchase begins. No unauthorized transmission or reproduction of this document, either in whole or in part, is permitted. -3-