Luna 6415 Lightwave Component Analyzer from the Luna 6400 Series

Luna / Series · Optical Component Test

Luna 6400 Series Lightwave Component Analyzers (Luna 6415, Luna 6435) OFDR Return and Insertion Loss Analyzers

OFDR-based lightwave component analyzers that measure insertion loss, return loss and length in reflection or transmission with 20 μm sampling resolution.

Measurement length modes, reflection mode: 20 m, 50 m; Optional: 100 m, 200 m
Measurement length modes, reflection mode: 100 m, 200 m, 500 m
Measurement length modes, transmission mode: 40 m, 100 m; Optional: 200 m, 400 m
Measurement length modes, transmission mode: 200 m, 400 m, 1000 m

View Models Datasheet

Overview

The Luna 6400 Series consists of the Luna 6415 and Luna 6435 lightwave component analyzers for testing passive optical components and fiber optic networks. The instruments measure and analyze the insertion loss (IL) and return loss (RL) distribution, as well as length, scanning the device under test in either reflection or transmission mode.

Measurement principle

The 6400 Series uses optical frequency domain reflectometry (OFDR) to measure backscattered or transmitted light as a function of distance. A sampling resolution of 20 μm and high sensitivity make the Luna 6415 suited to photonic integrated circuits (PICs), silicon photonics and passive components. The Luna 6435 extends the measurement range to 500 m in reflection for testing networks, amplifiers and other fiber systems.

Single-instrument test

By measuring RL, IL and length or delay in reflection or transmission with one instrument, the 6400 Series is intended to reduce the cost and complexity of test and increase throughput in manufacturing. The instruments are controlled remotely via SCPI commands over TCP/IP.

The Luna 6400 Series has been discontinued by the manufacturer; the replacement product is the Lightwave Component Analyzer LWA 7601-C.

Models in this series

Model	Description
Luna 6415	Luna 6415 Lightwave Component Analyzer OFDR-based lightwave component analyzer measuring insertion loss, return loss and length with 20 μm sampling resolution.	Details →
Luna 6435	Luna 6435 Lightwave Component Analyzer (OFDR, 500 m Reflection Range) OFDR-based lightwave component analyzer measuring return loss, insertion loss and length up to 500 m in reflection or 1000 m in transmission.	Details →

Key Features

Accurate return loss (RL) and insertion loss (IL) analyzer
Track and analyze return loss (RL) and insertion loss (IL) versus length
Analyze components in both reflection and transmission
Spectral analysis of IL and RL
Automatic RL/IL event detection
Trace distributed loss over length of optical path, with sampling resolution down to 20 μm
Detect and precisely locate reflective events and measure path length
Skew measurement with sub-picosecond resolution
Measurement length to 500 m (in reflection, with Luna 6435)
Remote control via SCPI commands

Specifications

Measurement

Measurement length modes, reflection mode Luna 6415	20 m, 50 m; Optional: 100 m, 200 m 100 m and 200 m with extended range option OPT06450
Measurement length modes, reflection mode Luna 6435	100 m, 200 m, 500 m
Measurement length modes, transmission mode Luna 6415	40 m, 100 m; Optional: 200 m, 400 m 200 m and 400 m with extended range option OPT06450
Measurement length modes, transmission mode Luna 6435	200 m, 400 m, 1000 m
Sampling resolution (two-point) Luna 6415	20 µm Distance between two sample points along the length axis in SMF-28
Sampling resolution (two-point) Luna 6435	20 µm, 80 µm 80 µm in 500 m mode (per product page); distance between two sample points along the length axis in SMF-28
Wavelength accuracy	± 8 pm Accuracy guaranteed via internal NIST-traceable HCN gas cell
Time-of-flight delay accuracy	± 0.001 % Accuracy guaranteed via internal NIST-traceable HCN gas cell
Center wavelength	1546.69 nm Product page states 1546.7 nm; datasheet value used
Wavelength scan range Luna 6415	± 20 nm
Wavelength scan range Luna 6435	± 20 nm, ± 5 nm Per measurement length mode as printed in the datasheet
Measurement time (in continuous mode) Luna 6415	0.08 s (20 m), 0.8 s (200 m)
Measurement time (in continuous mode) Luna 6435	0.4 s (100 m), 0.8 s (200 m), 0.5 s Per measurement length mode as printed in the datasheet
Maximum optical power	5 mW

Return Loss Measurements (Reflection Mode)

RL dynamic range	70 dB Range between strongest reflection greater than -60 dB and noise floor
Total range	0 to -130 dB Noise floor return loss at half of maximum length
Sensitivity	-135 dB Noise floor return loss at half of maximum length
Resolution	± 0.1 dB Measured with 1 cm integration width
Accuracy	± 0.2 dB Measured with 1 cm integration width

Insertion Loss Measurements (Reflection/Transmission)

IL dynamic range, in transmission mode	70 dB
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 With 10 cm integration width for 20 m, and 40 cm for 500 m mode
Accuracy	± 0.2 dB With 10 cm integration width for 20 m, and 40 cm for 500 m mode