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| Code | 665715 | Type | Adjustable Fiber Optic Attenuator Type | |
| Calibration Wavelength | 1550nm | Fiber Type | Single-mode Fiber | |
| Core Diameter |
8μm |
Cladding Diameter |
125μm |
|
| Insertion Loss (IL) |
1dB @ Typical, 2dB @ Max |
Attenuation Range |
IL-60dB |
|
| Attenuation Resolution |
0.01dB |
Return Loss |
40dB |
|
| Motor Type |
Bipolar Stepper Motor |
Motor Resolution |
7.5 °/Step |
|
| Gear Ratio |
485:1 |
Speed |
≤100 ms (0-3dB attenuation) |
|
| Accuracy |
±0.3dB @ IL-40dB, ±0.5dB @ 40-55dB, ±1.0dB @ 55-60dB |
Repeatability |
±0.03dB (0-10dB attenuation), ±0.10dB (0-30dB attenuation) |
|
| Power Supply |
6V/150mA |
Maximum Optical Power |
2W |
|
| Port Structure |
Hirose 16-pin Connector |
Weight | 250g |
|
| Dimensions |
71.12×38.1×20.32mm |
Single-mode/Polarization Maintaining Single-mode Fiber Attenuation Range: IL-60, Multi-mode Fiber Attenuation Range: IL-40 dB
Low Insertion Loss, High Return Loss
Electrically Controlled, Equipped with Bipolar Stepper Motor
The LBTEK electrically controlled adjustable fiber optic attenuator uses a blocking type (single-mode/polarization maintaining single-mode fiber) or variable neutral density filter type (multi-mode fiber) attenuation mechanism. The embedded microcontroller drives the circuit to control the internal stepper motor for adjusting the attenuation level. The motor is a bipolar stepper motor with a resolution of 7.5 °/step, and is connected to a deceleration gear, reducing the step size to 0.01546 °/step, providing an attenuation resolution of 0.01 dB.
The attenuator features a built-in RS-232 interface for computer control, and users can access and control it via a 16-pin Hirose connector and communication cable. The LBTEK electrically controlled adjustable fiber optic attenuator includes a communication cable and RJ-11/DB-9 adapter, and it also comes with fiber optic cables. The electrically controlled adjustable attenuator is recommended for use at the calibration wavelength, with an operating wavelength range of 400-1625 nm. For further details, please consult LBTEK technical support.
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