Tektronix TekRanger 2 TFS3031, Service Manual

Page: 89 / 272

Specifications – TekRanger 2 (serial nos. B052000 and above)
1–66
TFS3031 TekRanger/TekRanger 2 Service Manual
Standard 1300 nm Multimode, Option 03
Table 1–75: Optical Signal Characteristics (1300 nm Multimode, Option 03)
Characteristic Performance Requirement Supplemental Information
Displayed Pulse Width Measured between the -3.0 dB
points relative to the top of the
pulse.
100, 50, 20, 10, 5, 1 meters
Pulse Repetition Time (PRT)
Pulse Width
100 m
50 m
20 m
10 m
5 m
1 m
Minimum Typical
PRT (us): PRT (us):
62 us 650 us
31 us 600 us
13 us 550 us
7 us 500 us
4 us 450 us
1 us 400 us
Minimum reflects limit for laser
safety classification. Typical reflects
hardware/software constraints at
product introduction. Controlled by
system software and not directly
checked in the performance
verification procedure.
Optical Output, Wavelength 1300 ±30 nm Spectral mean or center of mass
provided by laser manufacturer.
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.
250 mW 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.
< 1.0 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. 59 - 62.)
Temperature Coefficient of Laser
Wavelength (0.4 nm/
o
C) x (T -25
o
C) typical