3.
Class 3B requires strict engineering controls.
4.
Classification is under single fault conditions.
FDA/CDRH laser
classification
The following table provides an overview of laser classes for
wavelengths of 1310 nm and 1550 nm in accordance with the
FDA/CDRH regulations.
Laser class
Wavelength
Max. output power of laser
radiation
I
1310 nm
1.53 mW
+1.85 dBm
1550 nm
8.52 mW
+9.3 dBm
IIIb
1310 nm
500 mW
+27 dBm
1550 nm
500 mW
+27 dBm
IV
1310 nm
> 500 mW
> +27 dBm
1550 nm
> 500 mW
> +27 dBm
Explanatory note: In the United States, lasers and laser systems are
assigned to one of the following classes: Roman numerals I, IIa, II,
IIIa, IIIb, and IV. Classes I, IIIb and IV apply to lasers of all
wavelengths. Classes IIa, II and IIIa apply only to those lasers
operating within the visible wavelength range (400-700 nm). Lucent
Technologies laser products typically operate in the infrared
wavelength range (greater than 700 nm) and, therefore, are primarily
in the class I or class IIIb classifications.
IEC laser classification
The following table provides an overview of laser classes for
wavelengths of 1310 nm and 1550 nm in accordance with the IEC
60825-1 Ed. 1.2 (2001) standard. The precise power limits depend on
the mode field diameter and the numerical aperture (NA) of the laser
source.
Laser class
Wavelength
Max. output power of laser
radiation
1
1310 nm
15.6 mW
+11.93 dBm
1550 nm
10 mW
+10 dBm
1M
1310 nm
50.84 mW
+17.06 dBm
1550 nm
121.20 mW
+20.84 dBm
Specific safety areas
Laser product classification
Safety
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365-374-074
Issue a, April 2002
Lucent Technologies
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