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10
S
PECIFICATIONS
Technical data
Adjustable wavelength
range
• OLS-55
• OLS-56/-55M
Calibrated wavelengths
• OLS-55
• OLS-56/-55M
Attenuation setting
• OLA-54
• OLA-55
• OLA-55M
Resolution
• OLA-54/-55
• OLA-55M
Linearity
Repeatability of attenuation
1)
setting
Total attenuation
2)
accuracy
Back reflection
Display modes
Reference level
Transfer of measured value or entry of any reference
Signal flow
• OLA-54/-55
• OLA-55M
Max. perm. input level
Minimum output power for
level control (OLA-55M)
1) Excluding re-mating.
2) Including connectors (to IEC874-1, method 6), depending on
quality of connectors applied to the OLA-54/-55/-55M.
58
(continuously over full range)
level in the range 2.00 to +60.00 dB,
one reference level for each wavelength
OLA-54/-55/-55M
(in 1 nm steps)
750 to 1350 nm
1260 to 1650 nm
850/1300 nm
1310/1550/1625 nm
2.0 to 55 dB
2.0 to 60 dB
2.5 to 60 dB
> 35 dB (typically 40 dB)
absolute or relative
bidirectional
unidirectional
0.05 dB
0.01 dB
0.2 dB
0.1 dB
0.8 dB
+20 dBm
-50 dBm
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