Variable Optical Attenuators

8-Channel MEMS VOA Array

Eight-channel MEMS variable optical attenuator array for dynamic gain equalisation in DWDM systems.

Wavelength Range	C band 1525–1570 nm; L band 1570–1610 nm
Attenuation Range	25 / 30 / 40 dB
Return Loss	45 dB
Insertion Loss	0.8 dB
Polarization Dependent Loss	0.1 dB at 0 dB; 0.4 dB at 0–10 dB; 0.8 dB at 10–20 dB
Flatness (broad band)	0.2 dB at 0 dB; 0.6 dB at 0–10 dB; 1.5 dB at 10–20 dB
Flatness (narrow band)	0.2 dB at 0 dB; 0.2 dB at 0–10 dB; 0.4 dB at 10–20 dB
Response Time	5 ms
Optical Power Handling	500 mW per channel
Dimension	60 × 50 × 11 mm
Fiber Type	SMF-28 (9/125 µm)
Fiber Marking	Input port red; output port clear
Operating Temperature	-5 to 70 °C
Storage Temperature	-40 to 85 °C
Power Consumption	10 mW
Channel Options	4, 8, 16 or customised

Variable Optical Attenuator

Miniature MEMS VOA with a movable silicon mirror, voltage-controlled attenuation up to 40 dB.

Wavelength Range	C band 1525–1570 nm; L band 1570–1610 nm
Attenuation Range	25 / 40 dB
Repeatability	0.1 dB
Attenuation Slope	20 dB/V
Insertion Loss	1 dB
Return Loss	45 dB
Polarization Dependent Loss	0.2 dB at 0 dB; 0.4 dB at 0–10 dB; 0.8 dB at 10–20 dB
Flatness (broad band)	0.2 dB at 0 dB; 1.0 dB at 0–10 dB; 2.0 dB at 10–20 dB
Flatness (narrow band)	0.25 dB at 0 dB; 0.5 dB at 0–10 dB; 0.5 dB at 10–20 dB
Response Time	5 ms
Total Optical Power	500 mW
Dimension	16 × Ø5.4 mm
Fiber Type	SMF-28 (9/125 µm)
Operating Temperature	-5 to 70 °C
Storage Temperature	-40 to 85 °C
Power Consumption	10 mW
Drive Voltage	6.5 V or 15 V
Compliance	Telcordia 1209 and 1221

Desktop Variable Optical Attenuator

Benchtop MEMS attenuator with 60 dB range, 0.1 dB resolution and RS232 control for laboratory and production use.

Operating Wavelength (calibration)	1310 and 1550 nm
Attenuation Range	60 dB max
Accuracy	±0.3 dB at 0–30 dB; ±0.6 dB at 30–60 dB
Attenuation Resolution	0.1 dB max
Attenuation Repeatability	0.2 dB max
Stability	0.2 dB max
Insertion Loss	2 dB max
Return Loss	45 dB min
Input Power	500 mW max
Fiber Type	SMF-28
Connector Type	FC/UPC or FC/APC (customised)
Power Consumption	200 mW max
Supply Power	AC 100–240 V 50/60 Hz
Communication Interface	RS232
Operating Temperature	-5 to 50 °C
Storage Temperature	-25 to 70 °C
Dimension	210 × 200 × 100 mm

Simple Variable Optical Attenuator

Compact bench attenuator in 30 dB and 60 dB versions, DC 9 V powered, for network and engineering test.

Attenuation Range	0–30 dB (30 dB model); 0–60 dB (60 dB model)
Stability	≤0.1 dB (30 dB model); ≤0.2 dB (60 dB model)
Insertion Loss	≤1.2 dB (30 dB model); ≤3.0 dB (60 dB model)
Repeatability	≤0.1 dB
Calibration	1310 / 1550 nm
Return Loss	≥45 dB
Input Power	≤500 mW
Fiber Type	SMF-28
Connector Type	FC/UPC or FC/APC (customised)
Supply Power	DC 9 V
Power Consumption	<100 mW
Operating Temperature	-5 to 50 °C
Storage Temperature	-25 to 70 °C
Dimension	120 × 190 × 60 mm

Hand-held Optical Attenuator

Portable MEMS attenuator with LCD display, 0.1 dB resolution and up to 60 dB range for field engineering.

Operating Wavelength	1310 and 1550 nm
Attenuation Range	50 dB or 60 dB max
Accuracy	±0.3 dB at 0–40 dB; ±0.5 dB at 40–60 dB
Attenuation Resolution	0.1 dB max
Attenuation Repeatability	0.05 dB max
Insertion Loss	2 dB max
Return Loss	50 dB (APC) or 40 dB (UPC) min
Fiber Type	SMF-28
Power Consumption	100 mW max
Display	Large screen LCD digital display
Operating Temperature	-5 to 50 °C
Storage Temperature	-25 to 70 °C
Dimension	158 × 88 × 36 mm
Weight	150 g