COHERENT INFRARED SOURCE TUNABLE FROM 2 TO 18 MICROMETERS

摘要

A tunable infrared system and a method of tuning a coherent infrared source is disclosed. The tunable infrared system includes a pump laser source for producing a laser beam at a first frequency. The system further includes at least a first and a second non-linear crystal based frequency converting device for receiving the laser beam, the first and second non-linear crystal based frequency converting device being configured for producing a first output laser beam having frequency in a first bandwidth range and a second output laser beam having frequency in a second bandwidth range, respectively. A directing mechanism is further provided for directing the laser beam produced by the pump laser source to either the first or the second non-linear crystal based frequency converting device.