MEMS Variable Optical Attenuator

MEMS Variable Optical Attenuator

The MP-VOA-780-500 is a precision optical power regulation device based on micro-electromechanical systems (MEMS) technology. It internally incorporates an electrically controllable micro-mirror. By applying a control voltage, the mirror angle is adjusted, which changes the coupling efficiency between the input and output fibres, thereby achieving continuously variable optical attenuation. The device uses Panda-type PM780-HP polarisation-maintaining fibre and features compact size, fast response, low power consumption, high repeatability, and high extinction ratio. It is available in both transmissive and opaque versions, making it suitable for optical power control and equalisation in polarisation‑sensitive optical paths.

Product features：Based on a mature MEMS micro‑mirror platform；Small cylindrical package；Maximum attenuation range up to 50 dB；Response time ≤ 1 ms

Part Number：MP-VOA-780-500

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Operating Wavelength Effective Focal Length (EFL) Numerical Aperture (NA)

780 nm / 808 nm / 850 nm ≥ 45 dB (max. 50 dB) ≤ 1 ms

Dimension Drawing

General Parameters

Parameter	Specification
Operating Wavelength	780 nm / 808 nm / 850 nm
Insertion Loss	≤1.2 dB
Extinction Ratio	≥18 dB
Extinction Ratio (with connector)	≥16 dB
Attenuation Slope	≤20 dB/V
Return Loss	≤-50 dB
Maximum Input Optical Power	500 mW
Response Time	≤1 ms
Repeatability	≤0.1 dB
Mechanical Durability	≥1×10⁹次
Fibre Type	Panda polarisation-maintaining fibre
Standard Attenuation Range	≥45 dB
Optional Attenuation Range	Up to 50 dB
Drive Mode	Non-latching
DC Drive Voltage	0～7 VDC
Maximum Damage Voltage	10 VDC
Insulation Resistance	≥2 MΩ
Maximum Power Consumption	20 μW
Operating Temperature	-5～70 ℃
Storage Temperature	-40～85 ℃

Package Dimensions and Pin Definition

图片3.png

Pin	Function
1	CNTL，control
2	CNTL，control
3	GND，ground

Control Voltage vs. Optical Attenuation Characteristic Curve

图片4.png

Ordering Information

Housing Type	Cylindrical
Attenuator Type	Transmissive
Attenuator Type	Opaque
Attenuation Range	≥45 dB
Optional Attenuation Range	Up to 50 dB
WDL	Not applicable
Key Orientation	None, slow axis, fast axis
Fibre Type	250 μm bare fibre
Fibre Type	900 μm loose tube
Connector	Optional interfaces
Pigtail Length	1 m or custom length
Lead Form	Straight or bent pins

Optional Configurations

Downloads

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Product title: MEMS Variable Optical Attenuator

Product link: https://www.idealphotonics.com/product/detail/1840.html

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