Fiber Refractive Index Analyzer

Fiber Refractive Index Analyzer

Keywords: Fiber Refractive Index Analyzer, fiber mode
Jan 19, 2021 View: 2723 Data Sheet

We specialize in Transverse Interferometry the most sensitive fiber measurement technology available. Our exclusive patent-pending Multi-Wavelength Optical Fiber Refractive Index Profiling Technology was first presented.

IFA-100 Optical Fiber Refractive Index Analyzer

We specialize in Transverse Interferometry, the most sensitive fiber measurement technology available.

Our exclusive patent-pending Multi-Wavelength Optical Fiber Refractive Index Profiling Technology was first presented as Postdeadline Paper PDP A2 at OFC/NFOEC 2009 and has since been the subject of peer reviewed conference and journal publications. Since the measurement is performed transversely (through the side of the fiber), it is essentially non-destructive.  Although the fiber's polymer coating or buffer must be removed, the fiber itself can continue to carry an optical signal during the measurement, and if necessary the polymer coating can be restored to the fiber after the measurement is completed.

Features:

  • Multiwavelength

  • No cleave required

  • Sub-μm spatial resolution

  • Applicable to any fiber type

  • Fast measurement time

  • Measure splices, tapers, couplers

 Specifications:

Refractive index   accuracy

 +/− 0.0001

Spatial resolution

 ~ 500 nm

Measurement wavelength

 500 nm to 1 μm

Fiber diameter

 40 μm to 400 μm

Fiber material

 Silica glass,   non-silica glass, plastic

Concentricity error   measurement

 +/− 200 nm

Core non-circularity   error measurement

 +/− 0.4 %

Fiber type

 singlemode,   multimode, microstructured (PCF), PM, multicore, rare-earth, cladding-pumped,   large mode area, low bend loss, high-Δ, etc.

STAR-nPA-600 Refractive Index Profiler

 Our refractive index profiler uses a modified refracted near-field technique to analyse a fiber end-face to determine the full 2D refractive index distribution.  The STAR-nPA-600 is the quick and easy way to get the refractive index data you need to verify your specialty fiber design and manufacturing processes.  The instrument comes with the v2.0 software which boosts system performance and improves user experience, and the API allows the STAR-nPA-600 to integrate to other system seamlessly.

Features:

  • Measure fibers up to 600µm in diameter.

  • Prepare and measure a fiber sample in under 2 minutes (2D measurement in seconds)

  • Measure non-circularly symmetric fibers – good for PM, octagonal, multi-core fibers.

  • Preinstalled with production-ready v2.0 software

            -Region cursor markers give an average of the refractive index of the marked region

            -Option to display target refractive index template alongside with actual fiber profile

            -API facilities users customisation and integration with other systems

            -Various measurement and output options for better system performance and user experience

  • Traceable calibration and new calibration tools


The STAR-nPA-600 measures most fiber types:

Technical Specifications:

Refractive index repeatability*

0.0002

Fiber diameter

40 to 600 µm

Fiber material

Silica glass

2D measurement time **

< 10 second

measurement range ***

+/- 0.025

Measurement wavelength

630nm

Maximum field of view

830 µm

Image sensor

APS-C CMOS, 6480x4860 pixels resolution

Dynamic range

73dB

Weight

6kg

Size

0.5m x 0.16m x 0.13m

Operating temperature

15 - 30°C

Performance specification

validated at 22°C

Computer requirements

All systems are supplied with a computer   running up-to-date Windows operating system

Data interface

1 x USB 3.0 (USB A to USB B: 1m cable   supplied)

* Repeatability is measured on a 125 µm MM fiber sample without removing from the measurement cell

** averaging 5 images

*** around reference fluid index

Software:

The latest release nPA v3.0 software improves user experience and boost system performance. 

Feature

Benifit

Target refractive index   template alongside the actual fiber profile

Enable users to view the fibers   refractive index against the target profile.

More viewing and output options

Improve user experience and   enable easy reporting and documentation for production

“Region Cursors” measurement

Obtain an average of the   refractive index of the marked region

“Flag” colour palette

Highlight the minute changes in   refractive index

New API

Enables users customisation and   integration with other systems

New calibration tools

Enables measurement accuracy   over time

Optional plug-ins

Extend the functionalities of   nPA-600. Two optional plug-ins are available for measuring the fiber geometry   of Panda-style PM fibers and single-mode fibers.

 

Ordering Information

Part number

Description

STAR-nPA-600

Optical Fiber Refractive Index   Profiler for full 2D measurement of optical fibers with diameters between 40   µm and 600 µm. Including optical unit, measurement cell, nPA-SOC oil cell,   nPA-IL-1.4680 refractive index liquid kit, nPA-CS100 set of cover slips, nPA-FTK-600   fiber test kit, nPA-CC rigid carrying case, nPA-F0270 and nPA-F0620 ferrule   pins, cables, software package, APL-DC desktop computer, keyboard and mouse.

Ferrule Pins


STAR-nPA-F0125

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of up to 125 µm

STAR-nPA-F0230

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 125 – 230 µm

STAR-nPA-F0270

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 230 – 270 µm

STAR-nPA-F0440

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 270 – 440 µm

STAR-nPA-F0520

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 440 – 520 µm

STAR-nPA-F0570

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 520 – 570 µm

STAR-nPA-F0620

nPA-600 Fiber guide assembly   for optical fiber with outer diameter of 570 – 620 µm

Optional Accessories


STAR-nPA-IL-1.4680

Bottle of Immersion liquid, 10   ml, ( Refractive Index = 1.4680, measured at 589 nm and 25°C ) for refilling   nPA measurement cell assembly, including syringes and nozzles

STAR-nPA-SOC

Replacement oil cell for   nPA-600

STAR-nPA-CS100

Set of 100 replacement cover   slips for use with nPA-600 oil cell

STAR-nPA-CC

nPA-600 rigid carrying case

STAR-nPA-600EW3

nPA-600 Refractive Index   Profiler extended warranty covering parts and labour for 3 years from   purchase, return to base. Cover excludes camera

STAR-nPA-600EW5

nPA-600 Refractive Index   Profiler extended warranty covering parts and labour for 5 years from   purchase, return to base. Cover excludes camera


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