Hybrid Optical Phased Array Phase Modulation

Abstract

To provide hybrid optical phased array phase modulation.SOLUTION: Aspects of the disclosure provide an optical communication terminal which may include an optical phased array (OPA). The OPA may include: a plurality of emitters; and a set of phase shifters which may include a first phase shifter and a second phase shifter. The first and second phase shifters may be arranged such that an incoming signal is modulated by the first phase shifter with a first update rate and a first tuning range and thereafter further modulated by the second phase shifter with a second update rate and a second tuning range. The first update rate may be different from the second update rate, and the first tuning range may be different from the second tuning range. The first phase shifter may be associated with one emitter of the plurality of emitters, and the second phase shifter may be associated with two emitters of the plurality of emitters.SELECTED DRAWING: Figure 1

Images