Electrically controlled polarization rotator using nematic liquid crystal

Li, Tenghao; Chen, Qingming; Zhang, Xuming

doi:10.1364/oe.26.032317

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…Then the possibility of change of polarization state was demonstrated in a photonic band-gap fiber filled with liquid crystal and controlled by compact four electrode system [23]. Later some examples of polarization rotators were presented in [46] and [47], but they were quite far from the possibility to arbitrary control state of polarization of light.…”

Section: All-fiber Polarization Controllermentioning

confidence: 99%

All-fiber tunable devices based on high-index photonic crystal fibers filled with liquid crystals

Ertman,

Chychłowski,

Bednarska

et al. 2023

Preprint

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In this paper we present all-in fiber tunable devices based on specially designed and optimized high-index photonic crystal fibers filled with nematic liquid crystals. A special host microstructured optical fibers have been designed and manufactured to ensure low-loss index guiding and mode field diameter matching to SMF-28 fiber, ensuring low losses on interconnections with leading in-out FC/PC connectorized pigtails. We present four types of tunable all-fiber devices: tunable retarders with tuning range as high as 20 λ, tunable polarizers with variable axis of polarization and continuously tunable polarization dependent losses, tunable and fully controllable polarization controller and finally indeterministic depolarizer in which depolarization is caused by random thermodynamic process. We also present a cost-effective method to achieve change in the direction of the steering electric field, which was controlled by custom-made programable controllers. Finally, we present a method for effective packaging for the proposed devices.

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Section: All-fiber Polarization Controllermentioning

confidence: 99%