Fibre adaptor improves optical input of spectrum analysers

A new adaptor for use with the Yokogawa AQ6370 Series of optical spectrum analysers (OSAs) is designed to enhance the sensitivity, dynamic range and level stability by reducing the divergence of light emitted from the input fibre and increasing the input signal to the OSA by 5 dB.

The light that is emitted from an optical fibre is divergent, and under normal conditions the limited size of the optics inside the OSA monochromator results in divergent light being blocked, and hence unable to contribute to a strong optical signal.

Subscribe to PII and receive:

Our long-established bi-monthly digital magazine *Process Industry Informer*, featuring exclusive articles, news and updates across the Process Industries, plus commentary from our three industry experts:

Sean Moran

Gavin Smith

Dave Green

PLUS:

• Process Industry Update — our weekly e-newsletter
• PII Podcast
• Special messages from our advertising partners

Subscribe for free now!

Using the new fibre NA adaptor on a GI50/125 multi-mode fibre results in the fibre’s numerical aperture (NA) value being divided by two. The reduction in divergence of the optical input increases the monochromator optical throughput, producing a 5 dB (factor 3) increase in signal strength.

The result of this enhancement in performance is better dynamic range in passive component testing and better level stability in active device testing.

The Yokogawa AQ6370 Series of optical spectrum analysers offer the world’s ‘best in class’ optical performance combined with excellent functionality and operability for applications including R&D and production testing of optical devices and transmission systems.

Covering the wavelength range from 350 to 2400 nm and applicable to both single-mode and multimode fibres, the AQ6370 Series provides unprecedented optical performance, including high wavelength accuracy of ±0.01 nm, high wavelength resolution of 0.02 nm, ultra-high dynamic range of 78 dB (typical), wide level range of -90 dBm, and fast sweep speed of 0.2 sec/100 nm.

For further information about the NA adaptor for the AQ6370 visit www.tmi.yokogawa.com/ea

For further information please contact:

Terry Marrinan
European Test & Measurement Centre
Yokogawa Europe BV
Euroweg 2
3825 HD Amersfoort
The Netherlands

Tel: +31 (0) 88 464 1811
Fax: +31 (0) 88 464 1111
E-mail: terry.marrinan@nl.yokogawa.com
http://www.tmi.yokogawa.com/ea