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.
