Santec unveils optical tunable filter

November 15, 2004 Komaki, Japan -- Santec Corp. has released its latest optical tunable filter product, the OTF-930. The company's Linear Sliding technology using dielectric thin-film filters provides an 80-nm tuning range with low polarization dependence and low dispersion characteristics.

Nov 15th, 2004

November 15, 2004 Komaki, Japan -- Santec Corp. has released its latest optical tunable filter product, the OTF-930. The company's Linear Sliding technology using dielectric thin-film filters provides an 80-nm tuning range with low polarization dependence and low dispersion characteristics.

A wide selection of filter profiles is available. The filters do not require any thermal control and as such have excellent wavelength stability.

The OTF-930 builds on the success of the previous OTF-920 filter unit. Improvements in both the optical filter and the optics design have resulted in up to a 10-dB reduction in loss. This is particularly important for narrow-bandwidth filters and provides a low-loss filter for selection of individual channels from an ITU grid, according to Santec. Other applications include ASE noise filtering for transmitter or system testing, realization of a tunable incoherent light source when used in conjunction with a broadband source, and optical signal noise filtering.

The OTF-930 retains the peak search function and RS-232C and GPIB interfaces of the OTF-920. LabView drivers are available. It is suitable for both laboratory and production environments. It will be available in January 2005.

Basic specs include:


    Wavelength tuning range: 80 nm (1530-1610 nm standard)
    Wavelength tuning resolution: 0.01 nm
    Wavelength accuracy: <±0.1 nm
    Wavelength repeatability: <±0.05 nm
    Insertion loss: <2.0 dB (1 nm @ -3 dB bandwidth)
    PDL: <0.1 dB
    PMD: <0.1 psec
    Size (W x H x D): 210x80x300 mm.

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