04.08.2010 rlt1550_40g.doc 1 of 3 RLT1550-40G technical data infrared laser diode features ? lasing mode structure: single mode ? peak wavelength : typ. 1550 nm ? optical ouput power: 40 mw ? package: 9 mm electrical connection pin configuration bottom view n-type pin function 1 ld cathode 2 ld anode, pd cathode 3 pd anode typical characteristics characteristics symbols values unit cw output power p op 40 mw operating regime cw center wavelength c 1550 +/- 10 nm U 8 deg fwhm beam divergence 45 deg operating voltage u op <2 v monitor voltage u m <5 v operating temperature t op 25 c package 9 mm technical parameters of stocked samples sample no. threshold current i th [ma] operating current i op [ma] monitor current i m [a] peak wavelength at p op op [nm] 1-v417 40 189 294 1565 2-v417 42 192 82 1567 3-v417 37 184 232 1566 4-v417 37 193 334 1566 6-v417 37 189 67 1567 12-v417 34 163 170 1563 14-v417 34 164 176 1564 15-v417 37 171 176 1567 16-v417 32 170 365 1564 17-v417 35 171 142 1565
04.08.2010 rlt1550_40g.doc 2 of 3 package dimensons 9 mm package ( unit:mm ) typical beam divergence -60 -40 -20 0 20 40 60 || _|_ ,deg. intensity, a.u.
04.08.2010 rlt1550_40g.doc 3 of 3 safety of laser light ? laser light can damage the human eyes and skin. do not expose the eye or skin directly to any laser light and/or through optical lens. when handling the lds, wear appropriate safety glasse s 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. cautions 1. operating methode ? this ld shall change its forward voltage requirement and optical ouput power according to temperature change. also, the ld will require more operation current to maintain same ouput power as it degrades. in order to maintain output power, use of apc (automatic power control) is recommended. which use monitor feedback to adjust the operation current. ? confirm that electrical spike current generated by swithing on and off does not exceed the maximum operating current level specified herein above as absolute maximum rating. also, employ appropriat 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 trap or anti-el ectrostatic glove when handeling 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 operated striclty below absolute maximum rating.
|
