DFB-1550-NLW-BF
Distributed-feedback single-longitudinal-mode laser with narrow linewidth, high side-mode suppression and temperature-tunable wavelength for coherent fiber sensing, gas detection (TDLAS) and precision measurement. Covers 1310–2050 nm with butterfly / TO package options.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Center wavelength λc [Tcase = 25 °C, at the Iop operating point.] | min:1545 nm；typical:1550 nm；max:1555 nm |
| Output Power (CW) Po [CW; Continuous Wave, Constant Current] | min:20 mW |
| Laser Linewidth Δν [Measured by OSA at 0.02 nm resolution; narrow-linewidth models use self-heterodyne measurement as the reference.] | typical:2 MHz |
| Side-Mode Suppression Ratio SMSR | min:35 dB；typical:45 dB |
| Wavelength Temperature Coefficient Δλ/ΔT | typical:0.09 nm/°C |
| Threshold current Ith | typical:15 mA；max:25 mA |
| Operating current Iop | max:200 mA |
| Forward Voltage Vf | typical:1.3 V；max:1.8 V |
| Slope efficiency ΔP/ΔI | typical:0.15 W/A |
| Monitoring Current Ipd | typical:0.5 mA |
| LD Reverse voltage [Absolute Maximum Ratings] | 2 V |
| TEC Current [Absolute Maximum Ratings] | 1.5 A |
| Operating Temperature (Case Temperature) [Case Temperature; Absolute Maximum Ratings] | -55~+85 °C |
| Storage temperature [Absolute Maximum Ratings] | -40~+85 °C |
| Fiber type | PM1550 / SMF-28e |
| Mode field Diameter (MFD) [± 0.5 µm] | 10.4 ± 0.5 µm |
| Connector | FC/APC |
| Pigtail length [Customizable] | 1.0 m(customizable) |
| Power Variation Rate over the Full Temperature Range [Case temperature −55~+85 °C] | < 5 % |
| Wavelength Variation Rate over the Full Temperature Range [Case temperature −55~+85 °C] | < 0.5 nm |
| Wavelength Temperature Tuning [Case temperature −55~+85 °C] | 0.09 nm/°C |
Applications
Key Features
Datasheet
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Supplier Information
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