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10Gb/s DFB Laser Module (Preliminary)
Description
The direct-modulated laser(DML) module is a cost-effective solution for 10 Gbits/s digital transmission using conventional intracity SMF28 single-mode fiber links. The package contains a high-speed DFB laser chip, thermoelectric cooler, thermistor, optical isolator, and a rear-facet monitor photodiode, which allows external optical control.
Characteristics
Parameter
Threshold Current Operating Current Operating Voltage Input Impedance Monitor Operating Current Thermistor Resistance Thermistor
(Tc=25 )
Test Condition CW CW CW P F=2mW @+25 @+25 1290 2 Min 10 9 Typ 10 1.3 50 10 4.8 Max 25 50 1.8 200 11 1330 nm mW dB dB GHz ps dB dB/Hz A/mW K Unit mA mA V
Features
Direct modulated 1310nm laser module Input impedance is 50 Emission wavelength is in 1.31 m b and Application to 10Gb/s
Symbol I th I op V op Z in Im RT c PF
Built-in optical isolator Built-in thermoelectric cooler GPO RF connector With photodiode for optical output monitor
Temp. Coeff. Center Wavelength Optical Output Power From Fiber End Side Mode Suppression Ratio Optical Isolation Cut off Frequency ( 3dB) Rise And Fall Time (10%~90%) Tracking Error Relative Intensity Noise
CW, I F=I op CW, I F=I op CW, I F=I op P F=2mW -
SMSR fc t r,t f Er Nr
30 30 10 -
-
50 0.5 145
T c=
20~ 65 , APC,ATC
CW,PF=2mW, 0.5~3GHz
155
Absolute Maximum Ratings
Parameter Storage Temperature Operating Temperature TE Cooler Current Symbol Tstg Top Ic Test Condition @+65 Ratings 40 ~ 70 20 ~ 65 1.5 Unit
o
Applications
High speed transmission systems(~10Gb/s)
C
o
C
A
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