Fiber Optic Attenuators

Fiber optic attenuators are passive devices used to reduce the power level of an optical signal. They are available in fixed and variable types, and come with connectors like FC/PC or LC/APC for easy integration.

Product	Wavelength Range	Maximum Optical Power	Fiber Type	Availability	Price (USD)
Electronic Variable Fiber Optic Attenuator	780 - 980 nm	200 mW, 250 mW	-	In stock	$ 2677.50
Product Code Wavelength Range 780 - 980 nm Maximum Optical Power 200 mW, 250 mW Return Loss > 40 dB Attenuation 1.5 dB (Typical, Minimum) > 25 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions 166.9 x 93.2 x 55.2 mm (6.57 x 3.67 x 2.17") Frequency Bandwidth 0 - 1 kHz (Minimum) 0 - 2 kHz (Typical) Input Voltage 0 - 4.9 V 5 V Supply Voltage 0 - 4.9 V 5 V (Maximum) Fiber Coupling Loss 1 - 1.5 dB Battery Charging Time 5 h (Typ.) from 2.1 mm Coaxial Barrel Jack Operating Temperature 10 - 40 °C Relative Humidity 5 - 85% Conversion Gain 20 mV/mW Input Impedance High Z Battery Life 300 h (Typ.) from Full Charge Output Impedance High Z Storage Temperature 0 - 50 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	970 - 1550 nm	100 mW	PM980-XP	Contact Supplier	$ 963.90
Product Code Wavelength Range 970 - 1550 nm Maximum Optical Power 100 mW Fiber Type PM980-XP Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Beat Length < 2.7 mm (980 nm) Mode Field Diameter 6.6 μm (±500 nm, at 980 nm) Polarization Extinction Ratio > 14 dB Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	980 - 1250 nm	100 mW	HI1060	In stock	$ 535.50
Product Code Wavelength Range 980 - 1250 nm Maximum Optical Power 100 mW Fiber Type HI1060 Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	780 - 980 nm	200 mW, 250 mW	-	In stock	$ 2677.50
Product Code Wavelength Range 780 - 980 nm Maximum Optical Power 200 mW, 250 mW Return Loss > 40 dB Attenuation 1.5 dB (Typical, Minimum) > 25 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions 166.9 x 93.2 x 55.2 mm (6.57 x 3.67 x 2.17") Frequency Bandwidth 0 - 1 kHz (Minimum) 0 - 2 kHz (Typical) Input Voltage 0 - 4.9 V 5 V Supply Voltage 0 - 4.9 V 5 V (Maximum) Fiber Coupling Loss 1 - 1.5 dB Battery Charging Time 5 h (Typ.) from 2.1 mm Coaxial Barrel Jack Operating Temperature 10 - 40 °C Relative Humidity 5 - 85% Conversion Gain 20 mV/mW Input Impedance High Z Battery Life 300 h (Typ.) from Full Charge Output Impedance High Z Storage Temperature 0 - 50 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1250 - 1650 nm	100 mW	SMF-28	In stock	$ 460.53
Product Code Wavelength Range 1250 - 1650 nm Maximum Optical Power 100 mW Fiber Type SMF-28 Return Loss > 30 dB Attenuation 1.5 dB (Minimum) > 25 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	600 - 780 nm	100 mW	630HP	In stock	$ 562.28
Product Code Wavelength Range 600 - 780 nm Maximum Optical Power 100 mW Fiber Type 630HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	488 - 600 nm	100 mW	460HP	In stock	$ 562.28
Product Code Wavelength Range 488 - 600 nm Maximum Optical Power 100 mW Fiber Type 460HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Fixed Attenuation Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Modulation Bandwidth 0 - 1 kHz Operating Temperature 0 - 40 °C Applications Lasers Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	770 - 1100 nm	100 mW	780HP, PM780-HP	In stock	$ 963.90
Product Code Wavelength Range 770 - 1100 nm Maximum Optical Power 100 mW Fiber Type 780HP, PM780-HP Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Beat Length 2.4 mm (850 nm) Mode Field Diameter 5.3 μm (±1 μm, at 850 nm) Polarization Extinction Ratio > 14 dB Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1450 - 1610 nm	100 mW	Corning P15-U25D	In stock	$ 910.35
Product Code Wavelength Range 1450 - 1610 nm Maximum Optical Power 100 mW Fiber Type Corning P15-U25D Return Loss > 30 dB Attenuation 1.5 dB (Minimum) > 25 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Beat Length 3 - 5 mm (1550 nm) Mode Field Diameter 10.5 μm (±500 nm, at 1.55 μm) Polarization Extinction Ratio > 16 dB Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	488 - 600 nm	100 mW	460HP	Contact Supplier	$ 562.28
Product Code Wavelength Range 488 - 600 nm Maximum Optical Power 100 mW Fiber Type 460HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Fixed Attenuation Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Modulation Bandwidth 0 - 1 kHz Operating Temperature 0 - 40 °C Applications Lasers Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	488 - 635 nm	100 mW	PM460-HP	In stock	$ 990.68
Product Code Wavelength Range 488 - 635 nm Maximum Optical Power 100 mW Fiber Type PM460-HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Beat Length 1.4 mm (488 nm) Mode Field Diameter 3.3 μm (±500 nm, at 515 nm) Polarization Extinction Ratio > 13 dB Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1700 - 2300 nm	100 mW	SM2000	Contact Supplier	$ 535.50
Product Code Wavelength Range 1700 - 2300 nm Maximum Optical Power 100 mW Fiber Type SM2000 Return Loss > 30 dB Attenuation 1.5 dB (Minimum) > 25 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	780 - 980 nm	100 mW	780HP	In stock	$ 535.50
Product Code Wavelength Range 780 - 980 nm Maximum Optical Power 100 mW Fiber Type 780HP Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	620 - 850 nm	100 mW	PM630-HP	In stock	$ 990.68
Product Code Wavelength Range 620 - 850 nm Maximum Optical Power 100 mW Fiber Type PM630-HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Beat Length 1.8 mm (630 nm) Mode Field Diameter 4.5 μm (±500 nm, at 630 nm) Polarization Extinction Ratio > 13 dB Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1250 - 1625 nm	200 mW, 250 mW	-	Contact Supplier	$ 2356.20
Product Code Wavelength Range 1250 - 1625 nm Maximum Optical Power 200 mW, 250 mW Return Loss > 40 dB Attenuation 1.5 dB (Typical, Minimum) > 25 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions 166.9 x 93.2 x 55.2 mm (6.57 x 3.67 x 2.17") Frequency Bandwidth 0 - 1 kHz (Minimum) 0 - 2 kHz (Typical) Input Voltage 0 - 4.9 V 5 V Supply Voltage 0 - 4.9 V 5 V (Maximum) Fiber Coupling Loss 0.3 dB Battery Charging Time 5 h (Typ.) from 2.1 mm Coaxial Barrel Jack Operating Temperature 10 - 40 °C Relative Humidity 5 - 85% Conversion Gain 20 mV/mW Input Impedance High Z Battery Life 300 h (Typ.) from Full Charge Output Impedance High Z Storage Temperature 0 - 50 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	980 - 1250 nm	100 mW	HI1060	In stock	$ 535.50
Product Code Wavelength Range 980 - 1250 nm Maximum Optical Power 100 mW Fiber Type HI1060 Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1700 - 2300 nm	100 mW	SM2000	In stock	$ 535.50
Product Code Wavelength Range 1700 - 2300 nm Maximum Optical Power 100 mW Fiber Type SM2000 Return Loss > 30 dB Attenuation 1.5 dB (Minimum) > 25 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1250 - 1625 nm	200 mW, 250 mW	-	Contact Supplier	$ 2356.20
Product Code Wavelength Range 1250 - 1625 nm Maximum Optical Power 200 mW, 250 mW Return Loss > 40 dB Attenuation 1.5 dB (Typical, Minimum) > 25 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions 166.9 x 93.2 x 55.2 mm (6.57 x 3.67 x 2.17") Frequency Bandwidth 0 - 1 kHz (Minimum) 0 - 2 kHz (Typical) Input Voltage 0 - 4.9 V 5 V Supply Voltage 0 - 4.9 V 5 V (Maximum) Fiber Coupling Loss 0.3 dB Battery Charging Time 5 h (Typ.) from 2.1 mm Coaxial Barrel Jack Operating Temperature 10 - 40 °C Relative Humidity 5 - 85% Conversion Gain 20 mV/mW Input Impedance High Z Battery Life 300 h (Typ.) from Full Charge Output Impedance High Z Storage Temperature 0 - 50 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	1250 - 1650 nm	100 mW	SMF-28	In stock	$ 460.53
Product Code Wavelength Range 1250 - 1650 nm Maximum Optical Power 100 mW Fiber Type SMF-28 Return Loss > 30 dB Attenuation 1.5 dB (Minimum) > 25 dB (Maximum) Fiber Connector Type FC/PC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	780 - 980 nm	100 mW	780HP	Contact Supplier	$ 535.50
Product Code Wavelength Range 780 - 980 nm Maximum Optical Power 100 mW Fiber Type 780HP Return Loss > 30 dB Attenuation 2 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs
Electronic Variable Fiber Optic Attenuator	600 - 780 nm	100 mW	630HP	Contact Supplier	$ 562.28
Product Code Wavelength Range 600 - 780 nm Maximum Optical Power 100 mW Fiber Type 630HP Return Loss > 30 dB Attenuation 2.5 dB (Minimum) > 30 dB (Maximum) Fiber Connector Type FC/APC Key Features Electronic Optical Attenuator Variable Attenuation Dimensions Ø 15.7 x 50.1 x 500 mm (±100 mm, 0.62 x 1.97", Length Excluding Fiber Leads, Length of the Fiber Leads) Frequency Bandwidth 0 - 1 kHz Input Voltage 0 - 5 V 10 V (5 mA) Supply Voltage 0 - 5 V 10 V (5 mA, Maximum) Operating Temperature 0 - 40 °C Relative Humidity 5 - 85% Input Impedance High-Z Storage Temperature -20 to 70 °C Supplier Location New Jersey, USA See product details More from Thorlabs