Array waveguide grating router with uniform loss

A technology of arrayed waveguide grating and arrayed waveguide, which is applied in the direction of optical waveguide light guide, light guide, optics, etc., can solve the problems of output channel insertion loss non-uniformity, achieve the effect of increasing the difficulty of manufacturing process, simplifying the design, and reducing device crosstalk

Active Publication Date: 2018-08-31
ZHEJIANG UNIV
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Problems solved by technology

[0005] Aiming at the deficiency of the background technology, the present invention provides an arrayed waveguide grating router wit

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  • Array waveguide grating router with uniform loss
  • Array waveguide grating router with uniform loss
  • Array waveguide grating router with uniform loss

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as figure 1 As shown, the specific implementation of the present invention includes an input waveguide 1, an input star coupler 2, an array waveguide 3, a Sinc function coupling region 4, an output star coupler 5, and an output waveguide 6 connected in sequence; light is input from the input waveguide 1, Arriving at the input star coupler 2, due to the Kirchhoff diffraction phenomenon, the light field is enlarged in the input star coupler 2 and received by the array waveguide 3, and the light received by the array waveguide 3 passes through the Sinc function coupling area 4 Focusing imaging in the output star coupler 5; the Sinc function coupling region 4 converts the Gaussian light field transmitted by the arrayed waveguide 3 into a Sinc function light field, and the far-field imaging of the Sinc function light field afte...

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Abstract

The invention discloses an arrayed waveguide grating router with uniform loss. Light is input from input waveguide to an input star coupler. Due to the Kirchhoff diffraction phenomenon, the optical field is expanded in the input star coupler and is received by the array waveguide. Then the received light of the array waveguide passes through the Sinc function coupling zone and forms focused imaging in an output star coupler. The Sinc function coupling region transforms the Gaussian optical field transmitted by the array waveguide into the Sinc function type optical field, so that the rectangular optical field is output from the output star coupler to achieve the function of uniform loss of the arrayed waveguide grating router. The arrayed waveguide grating router solves the problem of non-uniformity of loss inherent in the arrayed waveguide grating router. It has the advantages of large volume difference, low cost, small serial interference and the like.

Description

technical field [0001] The invention relates to an arrayed waveguide grating router, in particular to an arrayed waveguide grating router with uniform loss. Background technique [0002] In recent years, with the exponential increase of communication capacity, silicon-based integrated optical waveguide wavelength division multiplexing devices have been widely used in the field of optical communication. Among them, the arrayed waveguide grating router (Arrayed Waveguide Grating Router, referred to as AWGR) has become the core device in the optical communication system to realize the wavelength division multiplexing function due to its advantages of low cost, small size, compact structure, low loss, low crosstalk, and easy integration. one. [0003] However, since the output spectrum of an N×N arrayed waveguide grating router covers the entire free spectral region (Free Spectral Region, FSR for short), the energy of the m-level interference maximum of the edge channel is simi...

Claims

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Application Information

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IPC IPC(8): G02B6/12
CPCG02B6/12009Y02D30/70
Inventor 陈阳郎婷婷何建军
Owner ZHEJIANG UNIV
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