China CWDM Dfb 1490nm Laser Diode for CATV, Find details about China Laser Diode, Pigtail from CWDM Dfb 1490nm Laser Diode for CATV
CWDM DFB 1490nm laser diode for CATV
Features
1.Built - in optical isolator
2.Low capacitance and low dark current
3.High stability of CWDM lasers die
4.Low threshold current , low operating current
5.Integrated high isolation , low insertion loss
Applications
CATV Reverse Transmission
Other Analog or Digital Optical Transmission
Optical & Electrical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Test condition |
Rated Power | Po | 1 | - | 4 | mW | 50mA |
Threshold Current | Ith | 5 | - | 15 | mA | CW |
Forward Voltage Drop | Vop | - | 1.0 | 1.2 | V | - |
Cent Wavelength | λc | 1327 | 1330 | 1333 | nm | +/-3nm |
Spectrum Width | Δλ | - | 0.5 | 1 | nm | CW,-3dB |
Side-mode Suppression Ratio | SMSR | 35 | - | - | dB | - |
Monitor Current | Im | 0.1 | - | 0.9 | mA | CW,Ith+20mA |
Dark Current of Monitor | Id | - | - | 0.1 | uA | - |
Optical Isolation | ISO | 30 | 40 | - | dB | 25ºC |
Frequency Range | F | 2500 |
| 5000 | MHz | RI=50Ω |
Cut-off Frequency(-3dB) | Fc | 6 |
|
| GHz | If=Iop |
Relative intensity noise | RIN | - | -155 | -150 | dB/Hz | CW, If=Iop, f=2500MHz |
RF Bandpass Flatness | BF |
| ±1.5 |
| dB | If=Iop,45MHz-2500MHz,T=25 °C |
Note 1. 2.5Gb/s NRZ, pseudo-random, Pb=0.2mW, Ppeak=1.0mW