02.04.2012 G155PU001S 1 of 5 G155PU001S technical data pigtailed 14- pin dil laser diode with tec features applications ? 1 mw 1550 nm mqw laser diode module with cooler ? 14pin dil package with single mode fiber output ? optical communication ? ideal laser source of long - distance o ptical fiber communication specifications (25c) type flms - 1550 - 112 - 001 unit min. typ. max. optical specification cw output power p f - 1 - mw center wavelength c 1510 1550 1590 nm spectral width ? - 2 5 nm wavelength temperature coefficient - 0.35 - nm/c fiber characteristics fiber core size - 9 - m n.a. - 0.11 - fiber length 0.9 1 1.1 m connector fc/pc electrical specificati on slope efficiency e s 0.2 - - w/a threshold current i th - 10 20 ma operation current i o - 35 - ma operation voltage v f - - 1.5 v monitor current i m 0.1 1.3 - ma photodiode dark current i d - 10 20 na cooling capacity t 40 - - c cooler current i c - 0.5 1 a cooler v oltage v c - 1.2 2.1 v thermistor resistance r tr 9 10 11 k thermistor constant 3500 3900 4300 k package style 14pindip absolute maximum ratings reverse voltage v r 2 v operating temperature t o - 10 ? +75 c storage temperature t stg - 40 ? +85 c
02.04.2012 G155PU001S 2 of 5 package dimensions 1 ? cooler (+) 5 ? laser (p), case ground 7 ? monitor (n) 8 ? monitor (p) 9 ? ld (n) 10 ? laser (p), case ground 11 ? thermistor 12 ? thermistor 14 ? cooler ( - )
02.04.2012 G155PU001S 3 of 5 typical performance curves notes 1. laser beam is harmful especially for your eyes. don't look at the laser beam directly. 2. li fetime of the diode laser vari ed with the operat ing temperature inversely. we advise that the tec cooler should be used to keep the temperature suitable. 3. for turning on the diode laser, please increase the current gradually to the specified operating value. for shutting down the diode laser, please decr ease the current to zero gradually, and then turn off the power. 4. please wear static proof bracelet when operating. 5. please connect the pins of the diode laser correctly as the picture shown in the manual. 6. the operating current must less than the rated curre nt. other w ise the diode laser should be damaged. 7. the fiber facet should be keep clean before the diode laser is operating. 8. please use the constant - current source to avoid the surge. 9. diode laser should be short circuit when stop using. 10. bend diameter of the fiber must be larger than 4cm temporarily and 8cm permanently.
02.04.2012 G155PU001S 4 of 5 laser safety operating instructions laser usage requirements in environment ? a ultra - clean environment should be provided for operating the ld. the operating temperature should be controlled at ? 10 c ? 45 c . ? laser safety warning signs should be posted in the working place. the requirements on the power supply driving the ld ? constant - current should be available for power supply. the power supply should have the ability to avoid current or v oltage surge at any condition (during start - up, intermittence or open circuit). the surge would result in instant increase of optical power, which can cause comd (catastrophic optical mirror damage ). ? high power laser d iodes could operate in forward volt age. the reverse current and voltage should not be higher than 25 a and 3 v, respectively. laser operating requirements ? pl ease check the laser safeguard before used the ld. more information about the laser safe is mentioned in ? laser safe ? section of this manual. ? the semiconductor laser d iode is a s ensitive electronic devic e. d o not ship or store near strong electrostatic , electromagnetic , magnetic or radioactive field s. please o bserve precaution for handling electrostatic sensitive devices , such as wear ing anti - static wrist straps, use anti - static packaging material and tools when operation. ? s hut off the power supplier before connecting the ld with the power supplier . t o shut off the ld please decrease the current to zero gradually then shut off the power supply. ? t he operating current of laser must not be higher than the given rate current. the excessive current would accelerate aging and shorten lifetime, even damage the ld. ? keep the fiber pigtail clean. in non - working environmen t, you must use the p rotection case to avoid fiber pigtail from being polluted. if you need to clean the fiber pigtail, use ethanol or water - free alcohol cotton balls and wipe fiber pigtail gently . ? ld must be taken out of the fiber protect ion case before it starts to w ork. ? when laser is working, please don ? t point it straight to the fiber as shown below the yellow part , in order to prevent the fiber protection cas e from being damage d by high - power laser generated hea t . ? ld must be taken out of the fiber protect ion case before it starts to work. ? when laser is working, please don ? t point it straight to the fiber as shown below the yellow part , in order to prevent the fiber protection cas e from being damage d by high - power laser generated hea t . fiber pigtail f iber pigtail protection case
02.04.2012 G155PU001S 5 of 5 ? b ending diameter of the fi ber cannot be allowed to be less than 4cm . when bending the fiber, please make sure the starting point is away larger than 4cm from the fiber root. when moving the l aser , please don`t direct ly use fiber (yellow part ) . not obeying these rules may cause frac ture of the laser fiber from the root . ? make sure that the module and the fiber are in the same plane . c ooling system high - power semiconductor laser diodes are temperature - sensitive devices. h igh temperature will affect its performance. its lifetim e may also be shorten ed by working at high temperature. so the generated heat m ust be removed in time when the ld is working. w ater cooling system or tec system is recommended for keep ing the ld working at appropriate temperature . laser safety instruction s high power laser diodes are high energy laser devices. it is harmful to human body and health. any personnel working with or around open lasers must be aware of the following: ? exposure to the laser beam may cause physical burns and can cause severe eye damage. proper eye protection should be used at all times. all eye protection should be appropriate for the radiation wavelength generated by the laser in use. ? exposure to the laser beam may cause ignition of volatile or combustible materials. ? never loo k directly into the laser output port. ? interlock all rooms in which open beams may be present and post appropriate warnings on or near the doors. access to these rooms should be limited to properly trained technicians when lasers are in use. ? use appropriat e protective coverings over all beam paths whenever possible. ? lasers and optical elements should be positioned to keep the beam and reflections below eye level. bending diameter d: d ? f p f iber root fiber protection case
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