Special Laser for Gas Detection

Temperature controlled pigtail laser series, using quantum well structure DFB laser, built-in semiconductor refrigeration, advanced laser welding process to achieve butterfly tail fiber packaging, compact structure, small volume, widely used in the field of optical fiber communication; Due to the advantages of high power and wavelength stability under high precision temperature control of semiconductor refrigeration, laser is widely used in the field of optical fiber sensor.FeaturesImported quantum well structure(OMQs) DFB semiconductor laser chipStable wavelengthHigh output powerhermetic packagePackaging:BF14 Pigtail type,TF8 space type,TO39 and other customizedApplicationsFiber optic Gas detection systemProduction and testing of passive component for Gas detectionRated limit operating conditions:ParametersSymbolValueUnitForward current of laser diodeIf(LD)100mAReverse voltage of laser diodeVr(LD)2VOperating current of backlight detectorIf(PD)2mAOperating voltage of backlight detectorVr(PD)20VOperating current of refrigeratorITEC2.4AOperating voltage of refrigeratorVTEC2.9VOperating temperatureTopr-20~+70ºCStorage temperatureTstg-40~+85ºCLead welding temperature/timeTsld260/10ºC/sTechnical parameter:(Test environment temperature is 25ºC)ParametersSymbolConditionMin.Typ.Max.UnitOptical powerPOCW3 10mWThreshold currentIthCW−1218mAOperating currentIopCW, 5mW-−100mAOperating voltageVopCW, 5mW−1.52.0VSlope efficiencyηCW, 5mW0.050.1−mW/mAPeak wavelengthλpCW, 5mW@25ºCλc -1λcλc+ 1nmWavelength stabilityλsCW,5mW@25ºC-0.1nm +0.1dBSide mode suppression ratioSMSRCW, 5mW35−−nmSpectral width(20dB)ΔλCW, 5mW−0.2 nm/ºCWavelength drift coefficient with temperatureΔλ/TSteady operating current 0.1 nm/ºCWavelength drift coefficient with currentΔλ/ISteady operating temperature 0.01 nm/mAThermistorRthTtherm = 25ºC9.51010.5kΩAttention:In gas detection, according to the absorption spectrum data provided by HITRAN, there are usually several absorption peaks for the same gas. Customers should choose the best center wavelength location according to their own system needs.Gas absorption reference table:                                             Gas componentAbsorption wavelengthO2761nm,764nm (VCSEL)HF1268.7nm,1273nm,1278nmH2O1368.59nm,1392nmNH31512nmC2H21532.68nmCO1567nmH2S1578nmCo21580nm,2.0umC2H41620nm,1627nmCH41647nm,1650.9nm,1653.7nm,1660nmHCl1742nm  External dimensions:              /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1