EXFO’s CT440 is a compact tester for fast and accurate characterization of passive optical components (MUX/DEMUX, filters, splitters, etc.) and modules (ROADM, WSS). The unit covers the spectral range from 1240 to 1680 nm, so measurements can be made over the full telecom band. With the PDL option, the CT440 can simultaneously measure insertion loss and polarization dependent loss. KEY FEATURES Fast transfer function measurement Wavelength range: 1240 - 1680 nm (SMF model) PM and PDL options Wavelength resolution: 1 to 250 pm Wavelength accuracy: ±5 pm Dynamic range: 65 dB in a single sweep Combines up to four tunable lasers (SMF type) Four internal detectors, expandable with synchronization SPEC SHEET OPTICAL COMPONENT TEST

FAST INSERTION LOSS MEASUREMENT The CT440 features a unique combination of high-speed electronics and optical interferometry. The four integrated detectors allow for the simultaneous measurement of four channels with a 65 dB dynamic range in a single laser sweep. Moreover, ±5 pm wavelength accuracy is achieved at any sweep velocity, so there is no compromise between measurement speed and accuracy. Wavelength Figure 1. Four channel DWDM filter measurement in single sweep ACCURATE INSERTION LOSS MEASUREMENT The CT440 integrates a monitoring photodetector to compensate for any power fluctuation coming...

FULL-BAND READY The CT440 (SMF model) can operate between 1240 and 1680 nm and is fully compatible with EXFO’s T100S-HP series of tunable lasers. When several TLSs are used, the CT440 can automatically switch between the lasers to allow for seamless full-band measurements. The single connection to the DUT means no external switch is required. PM OPTION The CT440-PM uses polarization maintaining fiber between the TLS input and output ports. Available either with PM13 or PM15 fiber, these models can measure insertion loss of components with PM fiber input (e.g., MZ modulator). PDL OPTION The CT440-PDL...

Notes a. For a TLS sweep > 5 nm at sampling resolution of 5 pm for PDL-O and PDL-SCL and 1 pm otherwise, excluding the acceleration and deceleration part of the TLS sweep. b. After wavelength referencing. c. For incident power on detectors > -30 dBm. Accuracy: ± 0.5 dB for power between -30 dBm and -60 dBm. d. 1260 nm to 1640 nm. e. If laser output power = 10 mW (dynamic range is proportional to laser output power). f. For incident power on detectors > -30 dBm and determined from a 6-states measurement at 5 pm resolution. g. Stable testing conditions, 6-states recommended for high PDL. h. Selected...

MEASUREMENT SETUP Figure 5. Typical configuration for full band characterization PDL option ■- 00 = Without PDL option PDL = With PDL option Number of laser inputs 1 = 1 laser input 2 = 2 laser inputs 3 = 3 laser inputs 4 = 4 laser inputs T. Connector 58 = FC/APC narrow key Wavelength range and TLS input fiber type F = 1240 nm to 1680 nm, SMF28 singlemode fiber a SCL = 1440 nm to 1640 nm, PM15 polarization maintaining fiber b O = 1260 nm to 1360 nm, PM13 polarization maintaining fiber b Number of detectors 1 = 1 detector 2 = 2 detectors 3 = 3 detectors 4 = 4 detectors a. Only available only for...