Dr. Jia Jiang Profile

Dr. Jia Jiang

Research Scientist at Huawei Technologies Co Ltd

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Author

Publications (13)

Proceedings Article | 8 September 2011 Paper

Planar lightwave circuits: it's all in the cladding

Patrick Dumais, Claire Callender, Jia Jiang, Chantal Blanchetière, Dritan Celo, Sarkis Jacob, Chris Ledderhof

Proceedings Volume 8007, 80070T (2011) https://doi.org/10.1117/12.905157

KEYWORDS: Cladding, Waveguides, Birefringence, Photonic integrated circuits, Control systems, Etching, Silica, Signal processing, Refractive index, Thermal optics

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Proceedings Article | 23 February 2011 Paper

Wavelength tunable long period gratings based on silica waveguide geometric modulation

Jia Jiang, Claire Callender, Christopher Ledderhof, Jianfu Ding

Proceedings Volume 7934, 79340T (2011) https://doi.org/10.1117/12.874696

KEYWORDS: Waveguides, Cladding, Silica, Polymers, Refractive index, Modulation, Polymer multimode waveguides, Wave propagation, Photorefractive polymers, Signal processing

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This paper presents planar long period grating (LPG) devices based on a periodic thickness variation in the waveguide core, fabricated by etching into the lower cladding layer prior to definition of the waveguide layer. This periodic geometric change results in a stable grating structure and a permanent refractive index modulation of 10^-4 or higher, which is comparable to the index modulation in Ge-doped silica material induced by photo irradiation techniques widely used in fiber grating fabrication. This grating produces a strong resonance at a particular wavelength in the transmission spectrum, enabling a range of applications from wavelength filtering to signal distribution in communication networks. In this work, a polymer and silica hybrid architecture has been implemented in order to achieve wavelength tunability. Using a thermally oxidized silicon layer as a lower cladding, a Ge-doped silica ridge is patterned using conventional photolithography and reactive ion etching to form the waveguide core, which is then covered with a low index fluorinated polymer cladding. While the silica waveguides offer a lower propagation loss and an easy processability, the top polymer allows the device to be thermally tuned over a wide wavelength range by exploiting the opposite thermo-optic coefficient between fluorinated polymer and silica, and the high sensitivity of the underlying LPG to the refractive index of the cladding layer. Strong rejection bands have been demonstrated in the C+L band, in good agreement with theoretical calculations. Corrugated structures have been defined across an extended area under multiple waveguides resulting in coupling of light from the fundamental mode into cladding modes and back into the neighboring waveguides located far from the evanescent coupling distance. This kind of coupler can facilitate devices that require extraction and control of a particular waveguide mode for applications such as multiple channel signal distribution and temporal pulse shaping. Implementation of LPGs for these applications will be discussed.

Proceedings Article | 26 February 2010 Paper

Planar long-period gratings for photonic applications

Jia Jiang, Claire Callender, Christopher Ledderhof, Jianfu Ding

Proceedings Volume 7598, 75980Q (2010) https://doi.org/10.1117/12.842005

KEYWORDS: Waveguides, Cladding, Polymers, Refractive index, Silica, Polymer multimode waveguides, Planar waveguides, Sensors, Light wave propagation, Optical design

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SPIE Journal Paper | 1 July 2007

Fabrication of waveguide devices by UV photopatterning of fluorinated poly(arylene ether ketone)s containing tetrafluorostyrol moieties

Jia Jiang, Claire Callender, Julian Noad, Yinghua Qi, Jianfu Ding, Michael Day

OE, Vol. 46, Issue 07, 074601, (July 2007) https://doi.org/10.1117/12.10.1117/1.2756099

KEYWORDS: Polymers, Waveguides, Refractive index, Ultraviolet radiation, Photorefractive polymers, Polymer multimode waveguides, Reactive ion etching, Directional couplers, Optical lithography, Polymer thin films

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Proceedings Article | 14 September 2006 Paper

Photopatternable fluorinated poly(arylene ether ketone) for optical waveguide devices

Jia Jiang, Claire Callender, Julian Noad, Yinghua Qi, Jianfu Ding, Michael Day

Proceedings Volume 6331, 63310Q (2006) https://doi.org/10.1117/12.679556

KEYWORDS: Waveguides, Polymers, Ultraviolet radiation, Refractive index, Reactive ion etching, Directional couplers, Photonic devices, Etching, Optical lithography, Scanning electron microscopy

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SPIE Journal Paper | 1 December 2005

Birefringence control and dimension monitoring of silica-based ridge waveguides using Bragg gratings and ultraviolet irradiation

Xiaoli Dai, Stephen Mihailov, Claire Callender, Robert Walker, Chantal Blanchetiere, Jia Jiang

OE, Vol. 44, Issue 12, 124602, (December 2005) https://doi.org/10.1117/12.10.1117/1.2138680

KEYWORDS: Waveguides, Birefringence, Ultraviolet radiation, Fiber Bragg gratings, Refractive index, Silica, Stereolithography, Planar waveguides, Cladding, Reactive ion etching

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Proceedings Article | 9 November 2005 Paper

Sensitivity enhanced and polarization independent evanescent field planar ridge waveguide Bragg grating refractometer

X. Dai, S. Mihailov, R. Walker, C. Callender, C. Blanchetière, J. Jiang

Proceedings Volume 5993, 59930T (2005) https://doi.org/10.1117/12.629500

KEYWORDS: Waveguides, Fiber Bragg gratings, Refractive index, Polarization, Liquids, Sensors, Waveguide modes, Ultraviolet radiation, Waveguide sensors, Cladding

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Proceedings Article | 25 October 2005 Paper

Polymer wavelength division multiplexers based on bromo-fluorinated poly(arylene ether ketone)

Jia Jiang, Claire Callender, Sarkis Jacob, Julian Noad, Yinghua Qi, Jianfu Ding, Michael Day

Proceedings Volume 6014, 60141B (2005) https://doi.org/10.1117/12.629947

KEYWORDS: Waveguides, Polymers, Fluorine, Refractive index, Multiplexers, Cladding, Polymer thin films, Absorption, Polarization, Polymer multimode waveguides

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Proceedings Article | 20 December 2004 Paper

Polymer photonic devices using fluorinated poly (arylene ether ketone)

Jia Jiang, Patrick Dumais, Claire Callender, Chantal Blanchetiere, Julian Noad, Jianfu Ding, Yinghua Qi, Michael Day

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567081

KEYWORDS: Waveguides, Polymers, Photonic devices, Refractive index, Birefringence, Cladding, Fluorine, Polymer multimode waveguides, Signal attenuation, Thermography

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Proceedings Article | 20 December 2004 Paper

Design, synthesis, and properties of cross-linkable fluorinated poly(arylene ether ketone)s

Yinghua Qi, Jianfu Ding, Michael Day, Jia Jiang, Claire Callender

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567379

KEYWORDS: Polymers, Fluorine, Refractive index, Bromine, Birefringence, Waveguides, Transparency, Glasses, Calcium, Telecommunications

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Proceedings Article | 20 December 2004 Paper

Measurement of effective index change with UV-induced Bragg gratings and applications

Xiaoli Dai, Stephen Mihailov, Claire Callender, Chantal Blanchetiere, Jia Jiang

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.566230

KEYWORDS: Waveguides, Fiber Bragg gratings, Planar waveguides, Ultraviolet radiation, Birefringence, Reactive ion etching, Refractive index, Photomasks, Cladding, Prisms

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Proceedings Article | 20 December 2004 Paper

Ultraviolet-induced Bragg gratings in different core size ridge waveguides and birefringence control

Xiaoli Dai, Stephen Mihailov, R. Walker, Claire Callender, Chantal Blanchetiere, Jia Jiang

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.566190

KEYWORDS: Waveguides, Birefringence, Ultraviolet radiation, Fiber Bragg gratings, Refractive index, Cladding, Stereolithography, Silica, Wave propagation, Laser irradiation

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Proceedings Article | 15 December 2003 Paper

Birefringence control for polymer optical waveguide devices

Jia Jiang, Claire Callender, Chantal Blanchetiere, Julian Noad, Jianfu Ding, Michael Day

Proceedings Volume 5260, (2003) https://doi.org/10.1117/12.543435

KEYWORDS: Polymers, Birefringence, Waveguides, Refractive index, Polymer multimode waveguides, Coating, Polymer thin films, Photorefractive polymers, Silicon, Control systems

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Showing 5 of 13 publications

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