EXFO XTM-50 O-band, User Manual

Page: 9 / 68

XTA-50 User Guide 9
1. Product Presentation
The XTA-50 is a flat-top tunable filter for fiber-optic component and system testing. It is
designed for closely-spaced channel selection and extraction in DWDM applications.
When an optical signal is detected at the XTA-50 input port, the input wave is directed
towards the output port after passing through the XTA-50 monochromator, which is
tuned at the center wavelength via the XTA-50 software.
Each XTA-50 provides on-board touchscreen controls and user interface to drive both
system common controls and parameters. All system operations are software-controlled
from the XTA-50 user interface.
The XTA-50 system may also be remote-operated via an external screen or standard
USB, Ethernet, RS-232 and IEEE-488 (with an external controller) interfaces.
1.1 Technical Specifications
The following table lists the technical specifications of all XTA-50 models.
Optical
Characteristics
Standard
Ultrafine
O-band
*1 Wide
Wavelength Range 1450–1650 nm 1480–1620 nm 1260–1360 nm 1525–1610 nm
Wavelength Resolution 1 pm 1 pm 1 pm 1 pm
Wavelength Accuracy
*2 ±30 pm ±30 pm ±30 pm ±30 pm
Wavelength Tuning Speed 1 s 1 s 1 s 1 s
Minimum Bandwidth
(FWHM)
50 pm (6.25 GHz) 32 pm (4 GHz) 50 pm (8 GHz) 50 pm (6.25 GHz)
Maximum Bandwidth
(FWHM)
950 pm (120 GHz) 650 pm (80 GHz) 900 pm (160 GHz) 5000 pm (625 GHz)
Bandwidth Resolution 1 pm 1 pm 1 pm 1 pm
Bandwidth Tuning Speed 1 s 1 s 1 s 1 s
Filter Edge Roll-off 500 dB/nm
typical
*3
800 dB/nm
typical
500 dB/nm
typical
*3
500 dB/nm
typical
*4
Insertion Loss 5 dB (4.5 dB
typical) *5*6
5 dB (4.0 dB
typical) *6 *7
5 dB (4.5 dB
typical) *6*8
5 dB (4.5 dB
typical) *9*10
Flatness
0.2 dB *11 0.2 dB *12 0.3 dB *11*13 0.2 dB *14
Polarization Dependent
Loss
±0.2 dB
*5
±0.2 dB
*7
±0.2 dB
*8
±0.2 dB
*9
Out-band Suppression
(crosstalk) 40 dB
(60 dB typical)
*15
40 dB
(50 dB typical)
*15
40 dB
(60 dB typical)
*15
40 dB
(45 dB typical)
*15
Maximum Input Power 30 dBm 27 dBm
All specifications are given at 21°± 3°C after 30 minutes warm-up.
*1: Specifications apply for wavelengths not equal to any water absorption line.
*2: With "Backlash Suppression" setting enabled.
*3: Between -3 and -40 dB for FWHM <800 pm.