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Indexed by:
Journal paper
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Document Code:
305170
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First Author:
Binchen Cai
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Correspondence Author:
Chaotan SIMA
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Co-author:
Bolan Liu,Yuan Gao,YU YU,JAMES C. GATES,MICHALIS N. ZERVAS,PETER G.R. SMITH,LIU DE MING
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Journal:
Applied Optics
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Included Journals:
SCI、EI
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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:
56
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Issue:
28
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Page Number:
7978-7984
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ISSN No.:
1559-128X
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Key Words:
Integrated optics devices, Wavelength filtering devices, Waveguides, planar, Gratings.
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DOI number:
10.1364/AO.56.007978
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Date of Publication:
2017-09-29
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Impact Factor:
1.961
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Abstract:
In this paper, we present integrated reconfigurable photonic filters using fractional Hilbert transformers (FrHTs) and optical phase tuning structure within the silica-on-silicon platform. The proposed structure, including grating-based FrHTs, an X-coupler, and a pair of thermal tuning filaments, is fabricated through the direct UV grating writing technique. The thermal tuning effect is realized by the controllable microheaters located on the two arms of the X-coupler. We investigate the 200 GHz maximum bandwidth photonic FrHTs based on apodized planar Bragg gratings, and analyze the reflection spectrum responses. Through device integration and thermal modulation, the device could operate as photonic notch filters with 5 GHz linewidth and controllable single sideband suppression filters with measured 12 dB suppression ratio. A 50 GHz instantaneous frequency measuring system using this device is also schematically proposed and analyzed with potential 3 dB measurement improvement. The device could be configured with these multiple functions according to need. The reconfigurable structure has great potential in ultrafast all-optical signal processing fields.
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Links to published journals:
