Data Sheet
Data SheetData Sheet
Data Sheet
FOL15DCWD-****
September, 2001
September, 2001September, 2001
September, 2001
1550nm DFB Laser Diode Module
FOL15DCWD-**** (1550nm 40mW CW DFB-LD Module)
FOL15DCWD-****-NL
Applications
Applications Applications
Applications
• OC-48/STM-16 DWDM Transmission Systems
Features
FeaturesFeatures
Features
• Low Driving Current, High Slope Efficiency
• High Side Mode Suppression Ratio
• Selected Wavelength According to ITU-T Grid available
• 50GHz Spacing Available
• Narrow Linewidth Available
• Flame retardant, Conformable to UL1581 (VW-1)
Optical Characteristics
Optical Characteristics Optical Characteristics
Optical Characteristics (TLD=Tset, Tc=25°C, unless otherwise specified)
Parameter Sym Min Typ Max Unit Conditions
Optical Output Power Pf 40 - - mW CW
- - 250 LD Forward Current (C-band) 1
LD Forward Current (L-band)1 If - - 320
mA Pf=40mW,CW,BOL2
Submount Temperature Tset 20 - 35 °C Pf=40mW,CW
LD Forward Voltage Vf - - 2.5 V Pf=40mW,CW
Threshold Current ITh - 15 40 mA BOL
Wavelength λ
λλ
λ
1527.22 - 1600.60 nm Pf=40mW,CW
- - 10 Line Width
(-3dB fullwidth) ∆
∆∆
∆ν
νν
ν
- -
2 : NL MHz Pf=40mW,CW
Side Mode
Suppression Ratio SMSR 35 45 - dB Pf=40mW,CW
Optical Isolation Iso 25 - - dB Tc=-5 to 70°C
Relative Intensity Noise RIN - - -145 dB/Hz Pf=40mW,CW
OpRL<-25dB3,f=2.5GHz
Monitor Current Im 0.15 - 3 mA Pf=40mW,CW, VrPD=5V
Monitor Dark Current Id - - 100 nA VrPD=5V
Tracking Error TE -0.5 - 0.5 dB Im=constant, Tc=-5 to 70°C,
TEC Current Itec - - 1.2 A Tc=70°C,Pf=40mW,CW
TEC Voltage Vtec - - 2.4 V Tc=70°C,Pf=40mW,CW
Thermistor B constant B - 3900 - K Tset=25°C
Thermistor Resistance R 9.5 - 10.5 kΩ
ΩΩ
Ω
Tset=25°C
Extinction Ratio Er 20 - - dB Pf=40mW, CW
1 C-band considered 1527.22 – 1563.86nm and L-band 1564.68 – 1600.60nm
2 BOL : Beginning of Life
3 OpRL : Optical Return Loss