MIL-PRF-49291/1B
Macrobend attenuation: Performed at 1300 ± 20 nm.
Chromatic dispersion: The zero dispersion wavelength shall be not less than 1295 nm and not greater than 1330
2
nm. The dispersion slope at the zero dispersion wavelength shall not be greater than 0.11 ps/nm km.
Transient Attenuation: ≤ 1.5 dB at 1300 nm.
Light launch conditions: In accordance with EIA-455-50.
Wavelength: 1300 ± 25 nm.
Source type: LED with FWHM spectral width ≤ 160 nm.
ENVIRONMENTAL:
Temperature range:
Operating: -55° C to +85°
Nonoperating: -62° C to +85° C
Storage: -62° C to +85° C
Fluid immersion aging: Not applicable.
Nuclear radiation resistance: The nuclear radiation resistance characteristics of this optical fiber are classified and
are contained in an appendix to this specification. Application to receive this appendix must be made through the
US Army Communications- Electronics Command, ATTN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703-
5023. Information concerning security clearance classification and "need to know" must be detailed in the
request.)
Fungus: Applicable.
Dynamic tensile strength: Applicable.
QUALITY CONFORMANCE:
In group A testing length may be measured using mechanical methods.
In group C testing the mechanical strippability test may be omitted if the optical fiber coatings have not changed
from when the mechanical strippability test was last performed. The manufacturer shall provide a certificate of
compliance for mechanical strippability in the group C test report.
Part or identifying number (PIN). (See figure 1 and table I):
M49291/1-01
M49291/1-02
TABLE I. Supersession data.
PIN
Superseding
M49291/1-01
D49291/1-01
M49291/1-02
None
3