Tunable Fabry-Perot Filters

The FFP-series tunable fiber Fabry-Pérot filters from Luna Innovations (technology developed by Micron Optics) are all-fiber resonators without collimating optics, tuned piezoelectrically at low voltage. The lensless all-fiber design eliminates alignment issues, delivers low insertion loss and high finesse, and its reliability is confirmed by Telcordia GR-2883 qualification and decades of operation in OEM applications.

Applications

FBG fiber-optic sensor interrogators (scanning reference filters)
Spectral analysis and channel monitoring in DWDM systems
Tunable and swept laser sources (intracavity filters)
ASE noise filtering and spectral line selection in laboratory setups
OEM applications with low power consumption and limited installation space

Key parameters

Parameter	Value
Parameter	Value
Operating band	1520–1620 nm (custom configurations per manufacturer)
Scan range (configurable)	0.01–320 nm
Finesse	standard 100–6000; special versions from 2 to 30,000
FSR	up to approx. 27.5 THz (depending on configuration)
PDL	< 0.2 dB
Tuning voltage (PZT)	< 12 V (FFP-TF); < 18 V (FFP-TF2)
Scan speed	up to 50 kHz (per manufacturer materials)
Qualification	Telcordia GR-2883

Model families

FFP-TF / FFP-TF2 — tunable Fabry-Pérot filters; the TF2 version in an improved, Telcordia GR-2883-qualified housing with fast tuning. FFPI — fixed-cavity Fabry-Pérot interferometer. FFP-SI — fiber-optic scanning interferometer. AFPI — athermal Fabry-Pérot interferometer with reduced temperature sensitivity. The cavity parameters (wavelength, FSR, finesse, bandwidth) are configured for the specific OEM application.

Interlab is an authorized distributor — we provide technical consulting, deployment support and service. Ask for a quote.