Pakistan (/ËpÃ¦káµ»stÃ¦n/ or /pÉËkáµ»ËstÉËn/; Urdu: Ù¾Ø§Ú©Ø³ØªØ§Ùâ), officially the Islamic Republic of Pakistan, is a federal parliamentary republic in South Asia on the crossroads of Central Asia and Western Asia. It is the sixth-most populous country with a population exceeding 200 million people.
Spectrometers for Laser Measurement. These miniature rugged spectrometers are calibrated to measure and track laser frequency and centroid wavelength and/or total power of lasers in Watts. Currently, StellarNet offers laser measurement systems in the 200-2300nm range.
All you need is a function generator to produce the modulation signal. The electronic modulation circuit controls the power delivered to the laser diode, so it is directly turning the laser on and off. This type of modulation can also control the output power of the laser by reducing the electrical power delivered to the laser diode. The maximum response frequency of this type of modulation is usually around 30 kHz, though this varies by model and some may be lower.