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Indexed by:
Journal paper
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Document Code:
334516
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First Author:
Zijing Zhang
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Correspondence Author:
Chaotan SIMA
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Co-author:
Bolan Liu,Binchen Cai,Yuan Gao,ZHANG Minming,LI SHEN,YU YU,Meng Huang,Zhenggang Lian,MATTHEW T. POSNER,JAMES C. GATES,PETER G.R. SMITH,LIU DE MING
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Journal:
Optics Express
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Included Journals:
EI、SCI
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Discipline:
Engineering
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First-Level Discipline:
Other specialties in Optical Engineering
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Document Type:
J
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Volume:
26
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Issue:
16
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Page Number:
20450-20458
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ISSN No.:
1094-4087
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Key Words:
Analog optical signal processing, Waveguides, planar, Continuous
optical signal processing, Gratings.
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DOI number:
10.1364/OE.26.020450
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Date of Publication:
2018-07-16
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Impact Factor:
3.669
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Abstract:
We propose and experimentally demonstrate wideband and continuously tunable fractional-order photonic Hilbert transformers (FrHT). These are realized by a single apodized planar Bragg grating within a high-birefringence planar substrate. The fractional order of the FrHT is continuously tuned and precisely controlled by changing the polarization state of the input light. The experimental characterization demonstrates an operating bandwidth up to 120 GHz with amplitude ripples below 3 dB. The optical phase shift response is directly measured to verify the proposed tuning property, demonstrating transform orders of around 1, 0.7, and 0.5. This approach is simple, stable, and compact compared to other existing methods and has great potential in the fields of ultrafast all-optical signal processing.
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Links to published journals:
