期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 29, 期 13, 页码 2009-2014出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2011.2157302
关键词
Arrayed waveguide grating (AWG) polymer; strip waveguide; SU-8
资金
- Zhejiang Provincial Natural Science Foundation [R1080193]
- National Science Foundation of China [61077040]
Compact 48 x 48 and 23 x 23 arrayed waveguide grating (AWG) devices are realized by using SU-8 strip waveguides fabricated with the process of direct ultraviolet (UV) photolithography. The demonstrated 48-channel and 23-channel AWG devices operating around 1550 nm have a channel spacing of 0.8 nm (100 GHz) and 3.2 nm (400 GHz), respectively. Due to the high index-contrast of the SU-8 strip waveguide, the fabricated AWG has a very compact size of only about 0.22 x 0.47 cm(2). For the fabricated 100 GHz-spaced AWG, the crosstalk between adjacent channels is less than -15 dB, and the polarization-dependent wavelength is about 0.72 nm (@ 1543.5 nm). The fabricated 400 GHz-spaced AWG device exhibits a crosstalk of less than -20 dB, a polarization-dependent wavelength of 0.02 nm (@ 1559.6 nm). Finally the temperature tenability of the present AWGdevice is also characterized. A 12 nm tuning range is observed as the temperature changes from 25 degrees C to 115 degrees C.
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