Variable Optical Attenuators

Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss

The Fiber-Fiber™ Series Manual Variable Optical Attenuator (VOA) delivers industry-leading performance with ultra-low insertion loss and continuous, perturbation-free light transmission. Its ultra-broadband operation is limited only by the transmission characteristics of the optical fiber, enabling exceptionally wide wavelength coverage. The patented Fiber-Fiber™ technology utilizes direct fiber-to-fiber coupling through a self-aligned MEMS platform. A microscopic gap of less than 5 μm between the fiber end faces is filled with a proprietary non-fluorescent, index-matching liquid, creating a nearly lossless optical path without the need for lenses, collimators, or anti-reflection coatings. This unique architecture virtually eliminates Fresnel reflections and minimizes insertion loss while maintaining excellent optical fidelity.

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Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss

Configuration options

Build & quote

Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.

TypeTest WavelengthFiber TypeFiber CoverFiber LengthConnector

We confirm the exact part number for your configuration on enquiry.

Type: Transparent · Test Wavelength: 350 · Fiber Type: SM28 · Fiber Cover: 900um tube · Fiber Length: 1.0m · Connector: None

Application context

Why this design is used

Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.

Optical power control

Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss: Optical power control depends on preserving the optical budget through the complete path. The 350, 488, 532, 630, 780, 850, 980, 1060, 1310, 1550, 2000 wavelength specification sets source and detector compatibility. The fiber/interface entry (SM28, SM28e, Corning XB, SM400, SM450, SM600, Hi780, SM800, Hi980, Hi1060, SM1950, PM350, PM400, PM405, PM460, PM480, PM630, PM780, PM850, PM980, PM1310, PM1550, PM1950, GIF50, GIF625, 105/125, FG50LGA, FG105LCA, FG10LDA) must match the connected components.

Receiver calibration

Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss: Receiver calibration depends on preserving the optical budget through the complete path. The 350, 488, 532, 630, 780, 850, 980, 1060, 1310, 1550, 2000 wavelength specification sets source and detector compatibility. The fiber/interface entry (SM28, SM28e, Corning XB, SM400, SM450, SM600, Hi780, SM800, Hi980, Hi1060, SM1950, PM350, PM400, PM405, PM460, PM480, PM630, PM780, PM850, PM980, PM1310, PM1550, PM1950, GIF50, GIF625, 105/125, FG50LGA, FG105LCA, FG10LDA) must match the connected components.

Downloads

Datasheets & documents

System integration

Integration and compatibility

Use these checks to connect Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Optical interface and fiber: Fiber Type: SM28, SM28e, Corning XB, SM400, SM450, SM600, Hi780, SM800, Hi980, Hi1060, SM1950, PM350, PM400, PM405, PM460, PM480, PM630, PM780, PM850, PM980, PM1310, PM1550, PM1950, GIF50, GIF625, 105/125, FG50LGA, FG105LCA, FG10LDA · Fiber Cover: 900um tube; Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Wavelength and loss budget: Test Wavelength: 350, 488, 532, 630, 780, 850, 980, 1060, 1310, 1550, 2000; Check the Variable Optical Attenuators passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.

Technical FAQ

Integration questions for Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss

Which fiber and connector does the Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss use?

Fiber Type: SM28, SM28e, Corning XB, SM400, SM450, SM600, Hi780, SM800, Hi980, Hi1060, SM1950, PM350, PM400, PM405, PM460, PM480, PM630, PM780, PM850, PM980, PM1310, PM1550, PM1950, GIF50, GIF625, 105/125, FG50LGA, FG105LCA, FG10LDA · Fiber Cover: 900um tube. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.

How should the Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss be included in an optical power budget?

Test Wavelength: 350, 488, 532, 630, 780, 850, 980, 1060, 1310, 1550, 2000. Check the Variable Optical Attenuators passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.

Need this configured?

Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.

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Model selection

Nearby series comparison

Compare Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss with the closest available models in the Variable Optical Attenuators family. Confirm option-dependent values on the final configuration before ordering.

Selection parameter	Manual No-Gap Broadband Variable Fiber Optical Attenuator — Low-Loss (current)	Linear Digitally Control MEMS Variable Attenuators	Manual Variable Fiber Optical Attenuator — Regular
Wavelength range	350, 488, 532, 630, 780, 850, 980, 1060, 1310, 1550, 2000	1260~1650nm, 460nm, 630nm, 780nm, 850nm, 1060nm, 2000nm	1250-1640nm, 1310nm, 850nm, 850-1310nm
Optical performance	Confirm for this model	>45dB, >65dB, High Linear >45dB, High Linear >65dB	Confirm for this model
Fiber type	SM28, SM28e, Corning XB, SM400, SM450, SM600, Hi780, SM800, Hi980, Hi1060, SM1950, PM350, PM400, PM405, PM460, PM480, PM630, PM780, PM850, PM980, PM1310, PM1550, PM1950, GIF50, GIF625, 105/125, FG50LGA, FG105LCA, FG10LDA	SM 28, 50/125, 62.5/125, SM460, SM600, Hi1060, PM1550, 780HP, PM460, PM630, PM780, PM980, SM2000	SM28, PM 1550, PM 1310, 50 μm, 60 μm
Connector / control	None, FC/APC, FC/PC, SC/PC, SC/APC, ST/PC, LC/PC, LC/UPC, Special	USB, RS232	FC/APC