Skip to main content
Full specifications

XTM-50 - Tunable filter with adjustable bandwith

Download spec sheet
Download spec sheet
Overview
With the XTM-50 both center wavelength and bandwidth can be independently adjusted. It is manually controlled and versions are available covering all the key telecom wavelengths from 1260 nm to1650 nm and bandwidths from 32 pm (4 GHz) to 5 nm.
XTM-50 - Tunable filter with adjustable bandwith

Key features

  • Adjustable bandwidth flat-top filter
  • Ultra-sharp filter edges
  • High isolation
  • Up to 200 nm wavelength tunability
  • High accuracy and repeatability
  • Narrowest filter—highest selectivity

Applications

  • Channel selection for bit error rate testing
  • Analysis of sub-band of complex modulation formats
  • Channel spacing reduction
  • WDM-PON, DWDM systems testing
  • Amplification analysis
  • Cascaded ROADM emulation
  • OFDM
  • Active component and module testing
  • Transponders testing

Specifications

Technical specifications
Wavelength range (nm)1450 to 1650 (XTM-50 standard)
1480 to 1620 (XTM-50 ultrafine)
1260 to 1360 (XTM-50 O-band)a
1525 to 1610 (XTM-50 wide)
Wavelength resolution (pm)b5
Bandwidth (FWHM) Minimum50 pm (6.25 GHz) (XTM-50 standard)
32 pm (4 GHz) (XTM-50 ultrafine)
50 pm (8 GHz) (XTM-50 O-band)
50 pm (6.25 GHz) (XTM-50 wide)
Bandwidth (FWHM) Maximum950 pm (120 GHz) (XTM-50 standard)
650 pm (80 GHz) (XTM-50 ultrafine)
900 pm (160 GHz) (XTM-50 O-band)
5000 pm (625 GHz) (XTM-50 wide)
Bandwidth resolution1 pm (XTM-50 standard, ultrafine, O-band)
0.3 % of FWHM typical (XTM-50 wide)
Filter edge gradient500 dB/nm typicalc (XTM-50 standard)
800 dB/nm typical (XTM-50 ultrafine)
500 dB/nm typicalc (XTM-50 O-band)
500 dB/nm typicald (XTM-50 wide)
Insertion loss5 dB (4.5 dB typical)e,f (XTM-50 standard)
5 dB (4.0 dB typical)f,g (XTM-50 ultrafine)
5 dB (4.5 dB typical)f,h (XTM-50 O-band)
5 dB (4.5 dB typical)i,j (XTM-50 wide)
Flatness (dB)0.2k (XTM-50 standard)
0.2l (XTM-50 ultrafine)
0.3k,m (XTM-50 O-band)
0.2n (XTM-50 wide)
Polarization dependent loss (dB)±0.2e (XTM-50 standard)
±0.2g (XTM-50 ultrafine)
±0.2h (XTM-50 O-band)
±0.2i (XTM-50 wide)
Out-of-band suppression (crosstalk)o40 dB (60 dB typical) (XTM-50 standard)
40 dB (50 dB typical) (XTM-50 ultrafine)
40 dB (60 dB typical) (XTM-50 O-band)
40 dB (45 dB typical) (XTM-50 wide)
Optical fiber typeSMF or PMF (XTM-50 standard, ultrafine, O-band)
SMF (XTM-50 wide)
Connector typeFC/PC or FC/APC
a. Specifications apply for wavelengths not equal to any water absorption line.
b. Typical, related to user dexterity.
c. From –3 dB and –40 dB for FWHM < 800 pm.
d. Between –3 and –40 dB. Typically 550 dB/nm at FWHM = 50 pm; 450 dB/nm at FWHM = 1 nm; 225 dB/nm at FWHM = 5 nm.
e. From 1500 nm to 1600 nm and FWHM > 100 pm.
f. At lowest FWHM the insertion loss is 7 dB typical.
g. From 1500 nm to 1600 nm and FWHM > 60 pm.
h. From 1280 nm to 1340 nm and FWHM > 100 pm.
i. For FWHM >100 pm.
j. At lowest FWHM the insertion loss is < 7.0 dB.
k. Centered width of FWHM—150 pm. For 150 pm < FWHM < 650 pm.
l. Centered width of FWHM—100 pm. For 100 pm < FWHM < 500 pm.
m. From 1280 nm to 1340 nm.
n. Centered width of FWHM–150 pm. For 150 pm < FWHM < 2000 pm.
o. Measured 1 nm away from the –3 dB points.
General specifications
Temperature range 15 °C to 35 °C (59 °F to 95 °F)
Maximum optical input power (dBm) Standard: 30; Ultrafine: 30; O-band: 30; Wide: 27
Dimensions (W x D x H) 193 mm x 231 mm x 139 mm (7.6 in x 9.1 in x 5.5 in)
Weight 3.5 kg (7.7 lbs)