Generation of ultrashort optical pulses from semiconductor lasers by strong current modulation is discussed theoretically and some experimental results of ultrashort optical pulse generation from semiconductor lasers by microwave strong modulation are explained.

The relationship between the intensity modulation depth of light source and the modulation frequency and injection current of laser diode (LD) is studied in a LD interferometer with a photothermal modulation which is used for optical fine measurement.

Based on the physical model of a laser diode (LD) modulated utilizing photothermal effect, the relations of the photothermal intensity modulation depth of the LD with the modulation frequency and injection current are theoretically and verify experimentally deduced.

In this paper, A new technique for the multiplexing of intensity modulated optical fiber point sensors using TDM technology and a frequency domain approach is described.

In this paper, A new technique for the nultiplexing of intensity modulated optical fiber point sensors using TDM technology and a frequency domain approach is proposed.

Optimum design of the modulator in the novel spectropolarimeter based on intensity modulation;

In a reflective fiber optic displacement sensor, the influence on intensity modulation property caused by the reflector shape was studied theoretically with the mathematic model found.

Among the theoretical and experimental research of the reflective intensity modulated fiber optic sensor (RIM FOS), a very important problem is always neglected, which is the effect on the intensity modulation caused by perpendicularity between the axis of fiber pairs and the reflector, i.