The “APE Calculator” app is designed to solve nonlinear optics equations. With more than 10,000 downloads, it is one of the most frequently used apps for this purpose. The app is intended for customers and users who are primarily concerned with nonlinear processes in ultrafast laser technology. It performs the relatively simple conversion of wavelengths to wavenumbers or frequencies, but can also solve more complex tasks, such as dispersion caused by dispersion of short pulses. Users of OPOs or users of CARS will also benefit from the quick determination of pump, signal, or idler wavelengths. The calculator is available as a web application for the desktop ( or as an app for Apple and Android.

Download apk file

Here we provide the installation file (apk format) for your mobile phone for direct download. After downloading the zip file, you will need to unzip it before installation.

Download Button-06


EPIC Technology Meeting for Bio and Life Science

In September, we continue to advance on the path of technological innovation and promoting cooperation. read more

What does NOEKS mean and what does APE have to do with it?

NOEKS is the acronym of Nonlinear Optics and Excitation ... read more

EOSAM 2023 in Djion

We are thrilled to attend the European Optical Society Annual Meeting (EOSAM) in Dijon, France, showcasing our solutions for... read more

APE’s barbecue tradition

Just like Chinese people love to eat hot pot in winter, we love to eat barbecue in summer. At... read more

Latest video: Quick Installation Guide for pulseCheck NX

We are glad to share with you a tutorial video “APE pulseCheck – Quick Installation Guide”, ... read more

Summer party ’23

After some rainy weeks, the sun came back right on time for APE's summer party last week. read more

LASER World of PHOTONICS (Jun 27-30, 2023)

It was wonderful to meet you during the show. Once again we had a busy and fruitful event with... read more