-1- [ ytb-sc0018-01 ] 2012/10/12 violet laser diode for external cavity ? ? test sample ? ? features ? for external cavity laser with lo w reflection coatin g on front facet ? optical output power: 45mw ? can type: ?? 5.6 mm cathode ground ? absolute maximum ratings item symbol absolute maximum ratings unit optical output power po 65 mw ld forward current if 120 ma ld reverse voltage vr (ld) 2 v storage temperature tstg -25 ~ 75 ? c operating case temperature tc 10 ~ 55 ? c ? initial electrical/optical characteristics (ta=23 ? c *1) item condition symbol min typ. max unit optical output power cw po - - 45 mw peak wavelength po=45mw ? p 400 - 410 nm threshold current cw ith - 50 - ma operating current po=45mw iop - 72 - ma slope efficiency cw ? - 1.8 - w/a operating voltage po=45mw vop - 4.3 - v beam divergence*2 po=45mw ? // 7 - 12 deg. ?? 15 - 23 deg. emission point accuracy angle po=45mw ?? // -2.0 - 2.0 deg. ??? -2.5 - 2.5 deg. *1 there is some range in ambient temperature. *2 full angle at 50% from peak intensity all figures in this specification are measured by ni chia's method and may cont ain measurement deviations. diffractive feedback efficiency to the la ser diode must be limited less than 20 % under the external cavity configuration. this model is test sample for evaluation or de sign 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. 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 ? outline dimension unit (mm) ( ) are reference figures pin connection 2 1 3 ld 1. ld anode 2. nc 3. ld cathode this model does not have photo diode. x+ (0.4) (90 ) 0.40.1 5 . 6 + 0 - 0.03 12 3 y+ 2.00.2 3.550.1 3 0.450.1 1.20.1 0.250.03 glass thickness 6.51.0 4.20.2 1.00.1 emitting point z+ (1.3) emitting point reference plane 2.30.2 ( 1.6)
-2- [ ytb-sc0018-01 ] 2012/10/12 ? ? typical initial electrical/optical characteristics ? optical output power vs. forward current 0 10 20 30 40 50 20 40 60 80 forward current if [ma] optical output power po [mw] 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 slope efficiency se [-] po se ta=23deg.c forward voltage vs. forward current 0 1 2 3 4 5 0 20406080 forward current if [ma] forward voltage vf [v ] ta=23deg.c far field pattern 0 0.5 1 -30 -20 -10 0 10 20 30 angle ? [] optical intensity [-] . ta=23deg.c po=45mw spectrum -60 -50 -40 -30 -20 -10 0 10 399 400 401 402 403 404 405 406 wavelength [nm] optical intensity [db] ta=23deg.c po=45mw
-3- [ ytb-sc0018-01 ] 2012/10/12 ? cautions ? (1) operating method ? the ld shall change its forward voltage requirement and opt ical 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 recomme nded to reduce increases in temperature. ? confirm that electrical spike current generated by switchin g 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 degrad e the reliability of the lds. it is recommended to use a wrist strap or anti-electrostatic gl ove 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. in order to prevent excessive damage, the ld must be op erated strictly below absolute max rating. (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 desc ribed 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 specificat ions 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.
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