The OTF-930 is a polarization independent 80 nm tunable filter. Santec's unique "Linear Sliding" technology is a breakthrough in filter design that enables precise and continuous wavelength tuning with constant optical properties such as PDL, bandwidth and insertion loss.
The instrument is designed to allow filters to be cascaded to increase filter isolation with minimal increase in insertion loss. This model has a wide selection of filters that are suitable for most of the fiber optic applications in the market.
ASE Noise Suppression
Different filters can remove ASE noise from signal amplified by EFDA
Wavelength Channel Selection
Easy selection of single DWDM wavelength from a 100 GHz grid
Incoherent Light Source
Incoherent light source is created by combining filter with broadband light source
• 80 nm tuning range • Low insertion loss • Low PDL ( < 0.1 dB) & PMD ( < 0.1 ps) over whole tuning range • 0.01 nm resolution • Full GPIB support
Filter Selections
3 dB Bandwidth: 0.8 nm to 1.0 nm *Examples illustrate typical performance.
Filter type
08S1 - 3 dB Bandwidth 0.9 nm - 10 dB Bandwidth 2.8 nm - 20 dB Bandwidth
12S2 - 3 dB Bandwidth 0.9 nm - 10 dB Bandwidth 2.0 nm
08S1, 12S2 Filter Characteristics (@1550nm)
12 Filter Profile
Chromatic Dispersion & Group Delay [12S2, 1550nm]
Chromatic dispersion for each wavelength
1530 nm + 4.0 ps/nm - 4.5 ps/nm
1550 nm + 5.0 ps/nm - 5.0 ps/nm
1570 nm + 5.0 ps/nm - 5.0 ps/nm
Applications
ASE Noise Suppression When optical signals are amplified using EDFAs, unwanted levels of amplified spontaneous emission (ASE) can decrease the signal-to-noise ratio. The OTF-930 with 08-S1, 08-S2 or 12-S2 filters can remove the ASE noise with minimal loss.
Wavelength Channel Selection The 03-S2 filter configuration is particularly suitable for selecting a single DWDM wavelength from a 100 GHz grid. Other filters can be used to select other ITU grid spaced signals.
Incoherent Light Source When used in combination with a broadband light source the OTF-930 can be configured as a tunable light source. Although the output power is relatively low (- 30 to - 20 dBm) the incoherent light is especially useful for applications which are affected by coherent resonance effects or non-linear interference
Application example: Checking the signal degradation tolerance of optical transceivers
