(16-Channel, 400-2640nm, Up to 40dB)
Product Overview
The MEMS Variable Attenuation Array from Coreray integrates 16 independent variable optical attenuators (VOAs) into a single compact module. Based on reliable Micro-Electro-Mechanical System (MEMS) technology, this array offers precise optical power control across an ultra‑wide wavelength range of 400–2640nm, covering visible to infrared bands. Each channel provides up to 55dB attenuation range with 0.1dB resolution, making it ideal for multichannel power management in test systems, lab setups, and instrumentation.
The module accepts 0–5V analog control signals, allowing direct interface with DACs or microcontrollers. It supports single‑mode (SM), multimode (MM), and polarization‑maintaining (PM) fibers, and is available in various connector and package options to suit your application.
Key Features
High Stability & Repeatability – Excellent long‑term stability and <0.5dB repeatability over 0–60°C.
Low Cost & Compact Size – Cost‑effective solution for multichannel attenuation in a small footprint.
Low Power Consumption – ≤10mW typical, ideal for portable and embedded systems.
Wide Wavelength Range – 400–2640nm supports diverse applications from visible spectroscopy to telecom.
High Dynamic Range – Up to 55dB attenuation with 0.1dB resolution.
Low Polarization Dependent Loss (PDL) – ≤0.2dB for SM fibers in 0–15dB attenuation range.
Fast Response – 1–3ms typical response time (0→20dB).
Applications
Laboratory use and experimental setups
Optical component and system testing
Instrumentation (spectrum analyzers, power meters)
Channel power equalization in DWDM systems
Fiber optic sensor arrays
Automated test equipment (ATE)
Medical imaging and biophotonics
Technical Specifications
Parameter | Min | Typical | Max | Unit |
Operating Wavelength | 850~1310, 1260~1620 (others available) |
|
| nm |
Insertion Loss (without connector) |
| 0.6 | 1.0 | dB |
Attenuation Dynamic Range | 40 |
| 55 | dB |
Polarization Dependent Loss
(SM, 0~15dB) |
| 0.1 | 0.2 | dB |
Repeatability (0–60°C) |
| 0.2 | 0.5 | dB |
Extinction Ratio (PM) | 18 | 22 | 25 | dB |
Return Loss | SM, PM: 50
Multimode: 35 |
|
| dB |
Wavelength Dependent Loss |
| 0.3 | 0.8 | dB |
Response Time (0→20dB) |
| 1 | 3 | ms |
Optical Power Handling (CW) |
| 300 | 400 | mW |
Polarization Mode Dispersion | ≤0.05 |
|
| ps |
Optical Crosstalk | ≥65 |
|
| dB |
Attenuation Resolution | 0.1 |
|
| dB |
Max. Power Consumption | ≤10 |
|
| mW |
Electric Power Input | 0 |
| 5 | VDC |
Operating Temperature | -20 |
| +75 | °C |
Storage Temperature | -40 |
| +85 | °C |
Relative Humidity Range | 0 |
| 85 | % |
Product Dimensions
Electrical / Computer Connection
The 20‑pin connector provides individual 0–5V analog control for each of the 16 channels, plus two ground pins and two spare pins.
Pin # | Control VOA # | Control Voltage |
1 | VOA 1 | 0–5 VDC |
2 | VOA 2 | 0–5 VDC |
3 | VOA 3 | 0–5 VDC |
4 | VOA 4 | 0–5 VDC |
5 | VOA 5 | 0–5 VDC |
6 | VOA 6 | 0–5 VDC |
7 | |
