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OTF-970

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New! Wavelength&Bandwidth Tunable Filter OTF-970

Center wavelength adjustment & bandwidth tuning Independently


Santec has developed a new programmable optical tunable filter (OTF-970) that combines the attractive features of wide C+L band tunability with of bandwidth tuning and sharp filter slope. Built with novel, free-space custom optics and an ultra-fine tuning mechanism the OTF-970 ensures precise filter control and a flat-top passband shape. The filter is particularly suited to high isolation channel selection and noise filtering in high-speed transmission testing at 40Gb/s and 100Gb/s.

Overview

Overview

The OTF-970 line up consists of two versions depending on transmission bandwidth range and slope shape. The Standard type has 0.1 to 15nm adjustable bandwidth with a filter slope of 200dB/nm, and the ultra-fine type has 0.08 to 4nm bandwidth tuning with our steepest filter slope, 400dB/nm. The fully programmable OTF-970 has automatic adjustment of the filter center wavelength and bandwidth. An integrated power meter monitors output power and features an automatic peak search function. The setting of wavelength and the bandwidth can be automated and be operated remotely by the GPIB interface.

 

Features

Features
  • Center wavelength adjustment & bandwidth tuning independently
  • Wavelength range: 1525-1610nm (C&L Band)
  • Bandwidth range:
    Standard 0.1 – 15.0nm, Ultra-Fine 0.08 – 4.0nm
  • Flat-top filter shape with a steep filter slope
    Standard 200dB/nm, Ultra-Fine 400dB/nm
  • Peak search function
  • Programmable
  • Supporting control software (USB / GP-IB)

 

Applications

Applications
  • 40Gb/s , 100Gb/s transmission test
  • WDM wavelength tuning
  • ASE noise filtering
  • Next generation bundle wavelength OXC
  • Pulse shaping
  • Flexible test and measurement

 

Specifications

Specifications

 

Parameter Unit Standard Ultra-Fine Notes
Min. Typ. Max. Min. Typ. Max.
Wavelength Range nm 1525 1610 1525 1610
Bandwidth @-3dB nm 0.1 15.0 0.08 4.0
@-20dB nm 0.4 15.5 0.22 4.5
Wavelength Accuracy nm ±0.03 ±0.05 ±0.03 ±0.05
Bandwidth Accuracy nm ±0.03 ±0.05 ±0.03 ±0.05
Insertion Loss Bandwidth > 0.2nm dB 3.5 5 3.5 5 *1, 2
Bandwidth < 0.2nm dB 5.5 7 5.5 7 *1, 2
Filter slope dB/nm 200 400
Group Velocity Dispersion ps/nm ±0.2 ±0.2
Polarization Dependent Loss dB 0.25 0.25
Polarization Mode Dispersion ps 0.2 0.2
Crosstalk dB 50 50
Return Loss dB 45 45

 

*1:In case of peak search option, the insertion loss increases by 0.5dB
*2:The insertion loss at (1525nm – 1530nm) wavelength range may increase by 1dB.

 
 

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