The 1525-1570nm C Band Adjustable Light Source Module Is Small In Size
The 1525-1570nmC Band Adjustable Light Source Module Is Small In Size
U8712 Tunable Laser Module offer superior performance for the testing of DWDM components, AWG & PLC components, optical amplifiers, and other general purpose fiber optic test and measurement applications. It’s specifically designed for fast sweep fiber grating sensor testing.
U8712 module can be connected to a PC with a USB cable. They are highly accurate, powerful, compact-sized, fast-starting, and affordable tunable laser source systems which provide O band,C band, L band, or C + L band options. Module control software is also included on purchase. The module can also be integrated into any requested prodUts system with RS232 interface controls and an output triggered BNC port.
| 型号 Model # | U8712 | |||
| Band Option | O | C | L | CL |
| Center Wavelengths Available (nm) | 1280/1310/1340 | 1550 | 1590 | 1570 |
| Wavelength Tuning range (nm) | 30~35 nm | 40~45 nm | 40~45 nm | 80~85 nm |
| Tunable Band Range (nm) | 1260~1360 | 1525~1568 | 1566~1610 | 1525~1610 |
| Output Power | ≥ 5dBm | ≥ 13dBm | ≥ 10dBm | ≥ 7dBm |
| Wavelength resolution | 1.0 pm | |||
| Absolute wavelength accuracy | ±10 pm, Typ. ＜ 5 pm | |||
| Relative wavelength accuracy | ± 5 pm, Typ. ± 2 pm | |||
| Wavelength repeatability | ±2 pm, Typ. ± 1 pm | |||
| Wavelength stability | ≤ ± 2 pm | |||
| Tuning speed | ≤0.002 s per step | |||
| Power stability | ± 0.01dB, 15min；±0.05,1 hour；±0.1 dB, 24 hours. | |||
| Power repeatability | ± 0.05dB | |||
| Power linearity | ± 0.3dB | |||
| Power Over wavelength Ripple | 0.3dB typ., 0.5dB max. | |||
| Side-mode Suppression ratio | ≥ 45 dB | |||
| Output optical interface | PM, FC/APC 或FC/PC connector | |||
| Interface | RS232 or USB | |||
| Power | 3.3 V; 4.5A | |||
| Dimensions | 235 mm W, 55mm H, 165 mm D | |||
| Weight | 1.0 kg | |||
Principle of adjustable light source:
Mainly through the control of current and voltage, frequency size of the output to achieve LED dimming function. Specifically, the adjustable light source works by adding a wavelength selection optical device (frequency selector) to the laser cavity, so that only the selected wavelength can form resonance and emit laser light.
In addition, the principle of some adjustable light sources is to adjust the brightness of the LED by controlling the size of the current. Specifically, when the current passes through the LED, the brightness of the LED will be enhanced with the increase of the current. Therefore, by controlling the size of the current, the brightness of the LED can be adjusted. This mode of adjustment usually requires the use of specialized LED drivers to control the size of the current.
In short, the implementation principle of adjustable light sources can vary according to specific application scenarios and needs.
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