Laser Longitudinal Modes Tuning

Operating a laser is far from being a trivial operation. Depending on the exact temperature and current you may experience completely different behaviors! This is illustrated in Figure 1 where you can see the high-resolution spectrum of the same laser diode, the Thorlabs DJ532-40 used in the OpenRAMAN Performance Edition, Read more…

OpenRAMAN Spectrometer Efficiency

I recently had the occasion to measure the efficiency of the spectrometer part of the OpenRAMAN setup using a calibrated powermeter (Thorlabs PM100D) at the office and I’m therefore taking the occasion to create a short post on the subject. The spectrometer I tested was actually an adapted version of Read more…