FiberLabs Inc

Tunable Optical Filter (Bench Top)

Tunable Optical Filter
  • Tunable Optical Filter
  • Tunable Optical Filter
  • Tunable Optical Filter

Tunable Optical Filter (Bench Top)

FiberLabs' WaveLength-Tunable optical Filter (WLTF) is a versatile tunable optical filter with output power adjustment function. This product is primarily designed for O-band LAN-WDM/CWDM transceiver testing, but can be used for other general purposes.

Tuning wavelength can be customized within the telecom band (1260 to 1650 nm) upon request.

Product Type : Bench Top

Operating Wavelength:1260 nm ~1650 nm

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  • Wavelength Tunable (~100 nm in telecom wavelength)
  • Bandwidth Selection
  • Turn-Key Operation
  • RS-232C and GP-IB


  • Laboratory Use
  • Test and Measurement
  • Integration in System


Product NumberWLTF-FL-FT-XXXX-100-ZZ.Z
Wavelength FilterCenter Wavelength (CWL)XXXX (e.g. 1300)
Tuning Range100 nm
Tuning Resolution0.01 nm
FWHMZZ.Z (2.0 to 20.0 nm) @ CWL
Out-of-Band Suppression≥ 40 dB (Transmission peak to averaged out-of-band transmision)
Filter ShapeFlat-Top
Roll-Off22 dB/nm (-3 dB to -33 dB level)
Built-in AttenuatorAttenuation Range0 to 30 dB Typical
Attenuation Resolution0.1 dB
Accuracy+/- 0.5 dB Typical
Built-in Power MonitorMonitor Range-50 to +27 dBm
Monitor Resolution0.001 dB
Accuracy+/- 0.5 dB Typical
System Insertion Loss≤ 3 dB Typical @ CWL
Return Loss≤ 45 dB
PDL0.15 dB Typical @ CWL
Maximum Input Power300 mW
Input & Output FiberSMF28 or equivalent


Safety FunctionRemote Interlock
Remote InterfaceRS-232C / IEEE488.1 (GP-IB)
TemperatureOperation : 0 to 40 ºC / Storage : -10 to 60 ºC
Power SupplyAC 100 to 240 V (50/60 Hz)
Humidity5 to 80 % RH (non-condensing)
Other Environmental ConditionsIndoor use / Overvoltage category: II / Altitude:


012FC/APC Connector
013SC/PC Connector
014SC/APC Connector
081No Attenuator and Power Monitor
082Narrow Bandwidth
(0.1-1.0 nm, Gaussian)
083Narrow Bandwidth
(1.0-2.0 nm, Flat-Top)

WLTF-FL-O-FT-1300-100-2.5, tuned to LAN-WDM signals
WLTF-FL-O-FT-1300-100-2.5, tuned to LR8 signals
WLTF-FL-O-FT-1300-100-6.0, tuned to CWDM4 signals