Multi-Channel ITU Tunable Light Source DFB Laser Source
U8134 4Channel laser source offer superior performance for
the testing of CWDM, DWDM components, AWG & PLC components,
optical amplifiers, and other general purpose fiber optic test and
measurement applications. It is specifically designed for high
volume CWDM, couplers and PLC prodUtion line application.
U8134 4Channel laser source is a high stability,
compact-sized, fast-starting, and affordable optical laser source.
It provides Multichannel high performance, fixed wavelength output.
Any two or four and more of the following channels can be provided
on request: 1271, 1291, 1311, 1331
Specification
| Model # | U8124 | U8134 |
| Device Package | TO | Butterfly |
| Optional Wavelength | 1271/1291/1311/1331 |
| Wavelength Accuracy | ± 1 nm | ± 0.5 nm |
| Output Power | ≥1.0mW | ≥8.0mW |
| Connector Type | FC/APC ( Other Adaptor Can Be Customized) |
| Bandwidth@3 dB | ＜ 0.1 nm |
| Bandwidth@20 dB | ＜ 0.5 nm |
Output Power Stability within 15mins | ≤±0.01 dB | ≤±0.005 dB |
Output Power Stability within 8 hrs | ≤±0. 05 dB |
| SMSR | ＞ 40 dB |
| Operation Temperature | 0～ +40 ℃ |
| Storage Temperature | -30～+80 ℃ |
| Dimensions | 235 mm W, 55 mm H, 320 mm D |
| Weight | 3.0 kg |
Note: Single-channel model: U8121/U8131, dual-channel model:
U8122/U8132, four-channel model: U8124/U8134, etc
DFB principle:
The basic principle of fiber lasers is to pump light into a
section of active fiber (generally erbium-doped fiber or
erbium-ytterbium fiber and other fiber doped with rare earth
elements), so that the active fiber will have a gain in a certain
wavelength range (erbium-doped fiber is usually around 1550nm), if
there is a certain frequency selection structure on this section of
fiber, then the laser output can be achieved.
The Distributed Feedback (DFB) fiber laser is a type of
fiber laser. Its grating is distributed in the whole resonator,
that is, a phase-shift grating is written on the active fiber, and
only one grating can achieve light feedback and wavelength
selection, so that it has better frequency stability.
