InGaAs photodioides suit visible laser detection

Posted By : Barney Scott
InGaAs photodioides suit visible laser detection

 

Classically, visible laser detection is an application that would only be suited to silicon photodiodes. However, Laser Components UK has announced that, for designers seeking devices with greater temperature stability, its panchromatic InGaAs photodoides come up trumps.

The company's range of IG17, IG22 and IG26 InGaAs photodiodes are not only suitable for IR measurements, but their ability to detect from 400nm and excellent temperature stability means they also offer the choice of a replacement for Silicon photodiodes in laser applications, especially for measurements above 900nm where Silicon’s temperature dependence starts to deviate from the ideal under 0.1%/K value.

In this situation InGaAs is an attractive option providing a constant temperature coefficient of under 0.1%/K across a broad range of wavelengths. In Laser Components UK's measurements, the IG22 series is recorded as having a coefficient of 0.002%/K, and the corresponding spectral behaviour can be found in the graph below.

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Startups Magazine Launch Party: Financing a Startup
24th July 2018
United Kingdom WeWork Waterhouse Square, London
European Microwave Week 2018
23rd September 2018
Spain Ifema Feria De Madrid
IoT Solutions World Congress 2018
16th October 2018
Spain Barcelona
Engineering Design Show 2018
17th October 2018
United Kingdom Ricoh Arena, Coventry
Maintec 2018
6th November 2018
United Kingdom NEC, Birmingham