Tektronix TekRanger 2 TFS3031, Руководство по обслуживанию

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TFS3031 TekRanger/TekRanger 2 Service Manual
1–17
Specifications – TekRanger (serial nos. below B052000)
Standard 850 nm Multimode, Options 01 and 03
Table 1–4: Optical Signal Characteristics (850 nm Multimode, Options 01 and 03)
Characteristic Performance Requirement Supplemental Information
Displayed Pulse Width Measured between the -1.5 dB
points relative to the top of the
pulse.
10, 5, 1 meters.
Pulse Repetition Time (PRT)
Pulse Width
10 m
5 m
1 m
Minimum Typical
PRT ( m s): PRT ( m s):
184 m s 200 m s
92 m s 175 m s
19 m s 150 m s
Minimum reflects limit for laser
safety classification. Typical reflects
hardware/software constraints at
product introduction. The PRT is
controlled by design of the
software and does not need to be
checked in production.
Optical Output, Wavelength 850 ±30 nm Spectral mean or center of mass.
Optical Output, Spectral Width 10 nm FWHM typical.
RMS value of spectral energy is
timeĆaveraged mode from series of
pulses.
Optical Output, Amplitude Measured at peak value emitted
from front panel connector into
62.5
µ
m, NA=0.28, GI fiber.
3 W maximum
Laser Product Safety Classification CFR Class
I
and IEC Class 1 FDA CFR 21 dated 4/1/95 and
IEC 825-1 dated 11/93.
< 4.0 W peak emitted from laser
into laser pigtail.
For calculation refer to project
archive. (lnitial work work was
done in CNA Tektronix Engineering
notebook #35, pp. 30 - 37.)
Temperature Coefficient of Laser
Wavelength (0.25 nm/
o
C) x (T -25
o
C) typical