Mixed light combining-wavelength dividing demultiplexer based on array waveguide grating

A technology of arrayed waveguide grating and demultiplexer, which is applied in the direction of optical waveguide light guide, instrument, optics, etc., can solve the problems of high cost, complex structure, large module size, etc., and achieve the effect of reducing the cost of network construction
CN106019474AActive Publication Date: 2016-10-12HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2016-10-12

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Abstract

The invention discloses a mixed light combining-wavelength dividing demultiplexer based on array waveguide grating. The mixed light combining-wavelength dividing demultiplexer comprises a substrate and a wrapping layer and a wave guide layer arranged on the substrate sequentially from bottom to top, wherein the wave guide layer is a graph layer, where input waveguide, an input free transmission area, array waveguide, an output free transmission area and an output waveguide array are etched rightward with same thickness along a horizontal plane. The mixed light combining-wavelength dividing demultiplexer integrates wavelength dividing and light combining functions. During downlink communication, the mixed light combining-wavelength dividing demultiplexer can realize wavelength dividing de-multiplexing function, and during uplink communication, the mixed light combining-wavelength dividing demultiplexer can realize light combining function. The construction cost of a passive optical network (PON) can be lowered at certain level.
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Description

technical field

[0001] The invention belongs to the field of integrated photonic devices, and more specifically relates to a hybrid optical beam combiner-wave demultiplexer based on an arrayed waveguide grating. Background technique

[0002] With the rapid development of Internet technology, people's demand for network bandwidth continues to increase. In order to meet the ever-increasing bandwidth demands of users, the optical fiber access technology Passive Optical Network (Passive Optical Network, PON) is widely used.

[0003] Most of the existing PONs, such as EPON (Ethernet Passive Optical Network) and GPON (Gigabit Passive Optical Network), are based on time-division multiplexing technology. The downlink signal is broadcasted, and the signal is distributed to each optical network unit (Optical Network Unit, ONU) through an optical power splitter. The ONU only receives the specified data sent to itself; in the uplink time division multiplexing method, the optical line ...

Claims

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