Polymer waveguide delay device using right‐angle X junctions

Yi, Yunji; Chen, Changming; Zhao, Pengcheng; Ma, Chunsheng; Wang, Fei

doi:10.1002/mop.26050

Micro & Optical Tech Letters

2011

DOI: 10.1002/mop.26050

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Polymer waveguide delay device using right‐angle X junctions

Yunji Yi¹,

Changming Chen²,

Pengcheng Zhao³

et al.

Abstract: A four‐channels polymer waveguide delay device is demonstrated and fabricated using direct ultra‐violet photolithography process. The device is composed of right‐angle junctions and bending waveguide. The optimized structural properties of the device and fabrication procedures are demonstrated. The loss of bending waveguides and right‐angle X junction is calculated. The near‐infrared field guided‐mode patterns of the devices are obtained. Each incoming radio‐frequency signal can be independently received. Meas… Show more

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Scalable and reconfigurable true time delay line based on an ultra-low-loss silica waveguide

Song

Chen

2018

Appl. Opt.

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A scalable and reconfigurable on-chip optical true time delay line consisting of Mach-Zehnder interferometer (MZI) switches and delay waveguides is proposed and demonstrated with the ultra-low-loss silica waveguide platform. The MZI switches provide the reconfiguration of the light traveling paths and hence different delays. Our proposed structure can be easily scaled to an M bit delay line with a slight increase in dimensions. The footprint of our fabricated 1 bit delay line is 33 mm×13 mm (length×width) and can provide a delay of 6.0 ps with an insertion loss of 1.2 dB at the operating wavelength of 1550 nm, while the footprint of the 4 bit delay line is 43 mm×14 mm and can provide a discrete delay tuning from 6.0 to 90.2 ps with a delay deviation lower than 0.2 ps and a tuning response time of 0.84 ms. The insertion losses are lower than ∼2.34 dB, and the extinction ratios are greater than 20.42 dB. The average switching power is ∼132.6 mW. Our proposed optical true time delay lines could find applications for optical beamforming in phased array antennas.

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Scalable and reconfigurable true time delay line based on an ultra-low-loss silica waveguide

Song

Chen

2018

Appl. Opt.

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Polymer waveguide delay device using right‐angle X junctions

Cited by 1 publication

References 24 publications

Scalable and reconfigurable true time delay line based on an ultra-low-loss silica waveguide

Scalable and reconfigurable true time delay line based on an ultra-low-loss silica waveguide

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