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CWDM Diode Laser Module
The CWDM diode laser module is comprised of uncooled quantum well DFB laser chip, built-in InGaAs monitor photodiode, 4-pin coaxial pigtail type or plug-in type package, single-mode fiber coupling device, SC/APC or FC/APC optical connector, and built-in optical isolator. Its light source covers a wide wavelength range from 1270nm to 1610nm, totaling 18 wavelengths. Other typical values for the CWDM diode laser module are ±3nm for the spectral range, spectral bandwidth less than 0.2nm, maximum operating current 35MA, and output power range from 1MW to 3MW. This series of product is most commonly used in the WDM light source and communication system, CWDM analog communication system, CATV return-path transmission system, and other analog transmission systems.
Optical & Electrical Characteristics| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Condition |
| Rated Power | Po | 1 | - | 3 | mW | Ith+20mA |
| Threshold Current | Ith | 5 | - | 15 | mA | CW |
| Forward Voltage Drop | Vop | - | 1.1 | 1.5 | V | - |
| Cent Wavelength | λc | Note 2 | nm | Note 1 | ||
| Spectrum Width | Δλ | - | - | 0.2 | 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 | 25°C |
| Frequency Range | F | 45 | - | 4500 | MHz | RI=50Ω |
| Cut-off Frequency (-3dB) | Fc | 6 | - | - | GHz | If=Iop |
| Relative Intensity Noise | RIN | - | -155 | -150 | dB/Hz | CW, If=Iop, f=4500MHz |
| RF Bandpass Flatness | BF | - | ±1.5 | - | dB | If=Iop, 45MHz-4500MHz, T=25°C |
Related Names
LD for Coarse Wavelength Division Multiplexing Application | Laser Diode for CATV Application | Semiconductor Laser
Wuhan Shengshi Optical Technology Co. , Ltd.
Contact Person: Wendy
Fax: +86-27-87172995