Realising polarisation, phase and intensity modulation using a commercial DP-BPSK modulator
Year: 2025
Type: article
Abstract: Two microwave photonic structures capable of generating outputs equivalent to those of a polarisation modulator in push-pull and single-arm drive configurations are presented. They are implemented by a commercial dual-polarisation binary phase shift keying (DP-BPSK) modulator with RF components connected to the modulator input RF ports. A 2V π change in the voltage applied to the modulator RF port, where V π is the modulator RF port half wave voltage, causes the polarisation of the light wave at the modulator output to go through the great circle on a Poincare sphere. Phase and intensity modulation can also be realised by connecting a rotatable linear polariser at the equivalent single-arm drive polarisation modulator output. Experimental results are presented that demonstrate the realisation of polarisation, phase and intensity modulation using a DP-BPSK modulator. Two polarisation modulator based microwave photonic signal processors are also set up experimentally to demonstrate high frequency operation of the proposed equivalent polarisation modulators in the push-pull and single-arm drive configurations.
Source: Optics Communications
Institution: Charles Darwin University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,600
OpenAlex ID: W4414797395