Superstrate index control of waveguide grating reflectivity
نویسندگان
چکیده
منابع مشابه
Design of a High Index Waveguide Grating
Arrayed waveguide gratings (AWGs) are useful structures for the implementation of wavelength division multiplexing. The AWG consists of an input splitter, a dispersive waveguide array which creates the wavelength demultiplexing and multiplexing effects, and an output coupler. Because the dispersive waveguide array consists of bent waveguides, the size of an AWG is limited by the light loss in t...
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Arrayed waveguide gratings are useful structures for the implementation of wavelength division multiplexing; however, in their current form, silica-based gratings are too large to be made cheaply or to use as an integrated component. This paper describes a Master of Engineering thesis which will attempt to design such a structure which is at least one order of magnitude smaller than the best on...
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This paper discusses design, fabrication, and characterization of a 512 × 512 arrayed waveguide grating router (AWGR) with a channel spacing of 25 GHz. The dimensions of the AWGR is 16 mm × 11 mm and is fabricated on a 250 nm silicon-on-insulator platform. The measured channel crosstalk is approximately −4 dB without any compensation for the phase errors in the arrayed waveguides. The AWGR spec...
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The bandwidth of planar waveguide grating couplers is theoretically investigated based on the rigorous grating theory. We observe that the bandwidth behavior is not only determined by the grating coupler intrinsic properties, but also affected by the fiber parameters such as position, beam waist and Numerical Aperture. The rigorous bandwidth formula is derived. By analyzing the formula, several...
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ژورنال
عنوان ژورنال: Optics Letters
سال: 2002
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.27.000327