The FU-68SDF-V802MxxB 1.55mm DFB-LD module is a single-mode optical fiber tail fiber suitable for use as a directly modulated light source in 2.5Gb/s digital optical communication systems.
The FU-68SDF-V802MxxB is a 1.55 µm DFB‑LD module designed for direct‑modulated light sources in 2.5 Gb/s digital optical communication systems. It includes a built‑in optical isolator, thermoelectric cooler, photodiode monitor, and a butterfly package with a single‑mode fiber pigtail.
The datasheet provides electrical and optical characteristics, thermal data, absolute maximum ratings, and fiber‑pigtail specifications. It is intended for high‑speed transmission and dense‑WDM applications, complying with ITU‑T wavelength channel plans.
| Emission wavelength | 1.55 µm band |
|---|---|
| Input impedance | 25 Ω |
| Optical output power (max) | 6 mW |
| Forward current (max) | 150 mA |
| Reverse voltage (laser diode) | 2 V |
| Thermistor resistance (typical) | 10 kΩ |
| Cooler current (typical) | 1.3 A |
| Fiber connector type | FC/PC |
| Optical isolation | 35 dB |
The module operates from –20 °C to 70 °C.
It uses an FC/PC connector.
The maximum optical output power at threshold is 6 mW.