Luna OBR 6225-1 Portable Single-Channel Optical Backscatter Reflectometer

Portable, rugged single-channel OFDR reflectometer that measures distributed return loss and insertion loss with sub-millimeter resolution.

Number of optical ports: 1 port
Measurement length modes: 20 m, 50 m, 100 m, 200 m
Sampling resolution (two-point), 20 m mode: 0.080 mm
Sampling resolution (two-point), 50 m mode: 0.10 mm

Datasheet

Overview

The Luna OBR 6225-1 is the single-channel model of the OBR 6225, a portable and rugged ultra-high resolution reflectometer with backscatter-level sensitivity. It is intended for testing fiber optic networks deployed in aerospace, naval, data center and industrial applications.

The OBR 6225 belongs to the OBR 6200 Series, which also includes the OBR 6235 for data centers and longer networks. The series is designed for precision testing of short and medium length fiber optic links and assemblies.

The instrument uses optical frequency domain reflectometry (OFDR) to measure distributed return loss (RL) and insertion loss (IL) with sub-millimeter spatial resolution, high precision and high dynamic range. It maps reflection versus length and automatically detects RL reflection events and IL sites that exceed user-defined thresholds.

The OBR 6225-1 is a battery-powered integrated system with a touchscreen user interface, suited to field maintenance work. It measures up to 100 m as standard, with a 200 m mode available through the Extended Length Option, and has a single standard FC/APC optical connector.

Key Features

Fully portable and rugged OBR
Track and analyze return loss (RL) and insertion loss (IL) versus length
Spatial sampling resolution down to 80 μm
Detect and precisely locate reflective events
Measure optical path length with high precision
Automatic event detection
Single optical channel with standard FC/APC connector
Measurement lengths up to 100 m, 200 m with Extended Length Option
Battery-powered with 10.1" touchscreen user interface

Specifications

Measurement

Number of optical ports	1 port
Measurement length modes	20 m, 50 m, 100 m, 200 m 200 m mode with Extended Length Option (OPT06225)
Sampling resolution (two-point), 20 m mode	0.080 mm Distance between two sample points in SMF-28. Web page lists 0.80 mm (@ 20 m length); datasheet value used
Sampling resolution (two-point), 50 m mode	0.10 mm Distance between two sample points in SMF-28
Sampling resolution (two-point), 100 m mode	0.20 mm Distance between two sample points in SMF-28
Sampling resolution (two-point), 200 m mode	0.40 mm Distance between two sample points in SMF-28; with Extended Length Option
Time-of-flight measurement accuracy	± 0.005% Accuracy guaranteed via internal NIST-traceable HCN gas cell
Wavelength scan range	10 nm, 8 nm, 4 nm, 2 nm For 20 m, 50 m, 100 m and 200 m modes respectively
Center wavelength	1546.7 nm
Measurement time	10 s

Return Loss Measurement

RL dynamic range	70 dB Range between strongest reflection greater than -60 dB and noise floor
Total range	0 to -129 dB Noise floor return loss at half of maximum length
Sensitivity	-129 dB Noise floor return loss at half of maximum length
Resolution	± 0.1 dB Measured with 1 cm integration width
Accuracy	± 0.5 dB Measured with 1 cm integration width

Insertion Loss Measurement

IL dynamic range, in reflection mode	15 dB Two way loss before backscatter reaches noise floor and IL measurements are no longer possible
Resolution	± 0.1 dB Measured with integration widths of 10 cm, 12.5 cm, 25 cm and 50 cm for 20 m, 50 m, 100 m and 200 m modes, respectively
Accuracy	± 0.2 dB Measured with integration widths of 10 cm, 12.5 cm, 25 cm and 50 cm for 20 m, 50 m, 100 m and 200 m modes, respectively

General

Optical output power	4 mW
Battery	3 h runtime; 2 h charge time
Touchscreen display	10.1", 1280 x 800 resolution
Data I/O ports	USB-C, RJ45 Ethernet
Optical connector	FC/APC (SC/APC or FC/APC adapter patch cord)
Weight	10.1 lb (4.6 kg)
Case size	13.4 x 8.7 x 2.8 in (34 x 22 x 7 cm)