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OBR4600 Datasheet, PDF (2/4 Pages) List of Unclassifed Manufacturers – Easily locate, identify and troubleshoot macro-bends,splices, connectors and breaks
OBR 4600
PARAMETER
Maximum Device Length:
Standard Mode
Long Range Mode12
Spatial Resolution (two-point)1:
Dead Zone:
Wavelength Range2:
Wavelength:
Resolution (max)
Accuracy3
Integrated Return Loss Characteristics:
Dynamic range4
Total range
Sensitivity
Resolution5
Accuracy5
Integrated Insertion Loss Characteristics:
Dynamic range6
Resolution5
Accuracy5
Group Delay:
Accuracy
Distributed Sensing7,12,13:
Spatial Resolution8
Temperature Resolution9
Strain Resolution9
Measurement Timing10
Standard
5 nm scan time
3
Time vs. wavelength range
2.1 s+0.14 s/nm
Long Range (2 km) Scan Time
SPECIFICATION
30 or 70
2000
10 µm over 30 meters
20 µm over 70 meters
1 mm over 2 km
Equals 2-pt spatial resolution
1270-1340 or 1525-1610
0.02
±1.5
70
0 to -125
-130
±0.05
±0.10
18
±0.05
±0.10
1.0
Fast11
1.6
1.3 s+0.06 s/nm
±1.0
±0.1
±1.0
Spot Scan11
0.3
0.15 s+0.02 s /nm
20
UNITS
meters
meters
nm
pm
pm
dB
dB
dB
dB
dB
dB
dB
dB
ps
cm
C
µstrain
s
-
s
Specifications are for single-mode operation.
For multimode operation, specifications are nominal.
1 Over entire length range.
2 Ranges are nominal.
3 Accuracy maintained by an internal NIST-traceable HCN
gas cell.
4 For the 2000 m option, return loss dynamic range is 60 dB.
5 With integration width of 0.5 m
6 The insertion loss dynamic range is the one-way loss
that can be suffered before the scatter level of standard
SMF (~ -100 dB/mm) is lower than the noise floor
(~ -118 dB/mm).
7 Distributed sensing uses Rayleigh spectral shift method
and is relative to reference scan.
8 Spatial resolutions listed are ideal to get the temperature
and strain resolutions listed; they are not minimums or
maximums.
9 Temperature and strain resolutions are calculated from
spectral shift of Rayleigh scatter using 1 GHz = 0.8 C=
6.58 µStrain. [Othonos and K. Kalli, Fiber Bragg
Gratings (Artech House, Boston, 1999)].
10 Combined scan and analysis time in high-resolution
mode. Times are for 30 m scan mode.
11 Times are with laser tuning speed set at 100 nm/s.
12 Extended range mode and distributed sensing are
upgrade options
13 Maximum standard sensing length is 70m. Limited
sensing is available in extended range mode. Contact
your Luna representative for more information.
CLASS 1 LASER PRODUCT
©Luna Innovations Incorporated, Roanoke, VA
All rights reserved.
SpecificationsT
OBRTM is a trademark of Luna Innovations Incorporated.
LTOBR4600 REV. 004 02/13/2014