Single-mode vertical cavity surface emitting laser transceiver module and optical signal propagation method

A vertical cavity surface emission, transceiver module technology, applied in the field of optical interconnection, can solve the problem of not considering polarization sensitivity, and achieve the requirements of reducing alignment accuracy, improving interconnection bandwidth and interconnection density, and easy coupling and alignment. Effect

Active Publication Date: 2017-09-05
ZHONGTIAN BROADBAND TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, most of the current optical modules do not consider the problem of polarization sensitivity

Method used

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  • Single-mode vertical cavity surface emitting laser transceiver module and optical signal propagation method
  • Single-mode vertical cavity surface emitting laser transceiver module and optical signal propagation method
  • Single-mode vertical cavity surface emitting laser transceiver module and optical signal propagation method

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Experimental program
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Effect test

Embodiment 1

[0057] like image 3 As shown, the single-mode photonic crystal VCSEL is a single-polarized single-mode photonic crystal VCSEL11, and the vertical grating coupler is a one-dimensional single-polarization vertical grating coupler 70, that is, the first vertical grating coupler 50 and the second vertical grating coupler 60 are both is a one-dimensional single-polarization vertical grating coupler 70, and the coupling angle of the one-dimensional single-polarization vertical grating coupler 70 is 90°, and the light polarization mode of the one-dimensional single-polarization vertical grating coupler is the same as that of a single-polarized single-mode photonic crystal The light polarization modes of the VCSEL 11 are matched.

[0058] reference together Figure 4 and Figure 5 , Figure 4 shows the structure of a single-polarized single-mode photonic crystal VCSEL, Figure 5 The end face structure of the two-dimensional photonic crystal VCSEL is shown; wherein, the single-pol...

Embodiment 2

[0065] like Figure 8 As shown, the single-mode photonic crystal VCSEL is a single-mode photonic crystal VCSEL 12 in a non-polarized mode, the vertical grating coupler is a two-dimensional vertical grating coupler 80, and the coupling angle of the two-dimensional vertical grating coupler 80 is 90°, that is, the first Both the one vertical grating coupler 50 and the second vertical grating coupler 60 are two-dimensional vertical grating couplers 80 .

[0066] The non-polarized mode single-mode photonic crystal VCSEL 12 includes: an n-type ohmic contact layer, a substrate, an underlying distributed Bragg mirror DBR, an active layer, an oxide layer arranged in sequence along the direction away from the n-type ohmic contact layer and a top layer DBR; wherein, the top layer DBR is etched with a two-dimensional photonic crystal VCSEL and a p-type ohmic contact layer, and the etched two-dimensional photonic crystal VCSEL includes a plurality of circular holes. The two-dimensional ph...

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Abstract

A single-mode vertical cavity surface emitting laser (VCSEL) transceiving module, comprising an optical waveguide layer (40), a single-mode photonic crystal VCSEL (10) arranged on the optical waveguide layer (40) and a detector (20) corresponding to the single-mode photonic crystal VCSEL (10), and vertical grating couplers (50,60) which may change an optical signal emitted by the single-mode photonic crystal VCSEL (10) and inject same into the detector (20). By means of the single-mode photonic crystal VCSEL (10), the single-mode transmission of an optical signal is realized, and by means of the vertical grating couplers (50,60), the spot size of the optical signal transmitted in the optical waveguide layer is downscaled, so that it can be applied to a silicon base material waveguide and the interconnection bandwidth and the interconnection density of the VCSEL transceiving module are improved. Meanwhile, the vertical grating couplers (50,60) may realize polarization splitting to improve the working stability of an optical polarization-sensitive device.

Description

technical field [0001] The invention relates to the technical field of optical interconnection, in particular to a single-mode vertical cavity surface emitting laser transceiver module and an optical signal propagation method. Background technique [0002] As a traditional material in the field of microelectronics, silicon material has absolute advantages in processing technology and production cost. The microelectronic integration process based on silicon material is quite mature. However, the development of microelectronic circuit integration is constrained by physical properties that have been developed to the limit. Electrical interconnection faces the challenges of metal wire interconnection delay, power consumption and bandwidth, and it is difficult to meet the global requirements of future many-core SoCs. Compared with microelectronic circuits, photonic integrated circuits have many advantages, such as large bandwidth, low power consumption, and low delay. Silicon-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42H01S5/183
CPCG02B6/42H01S5/183
Inventor 张俪耀曹彤彤张灿
Owner ZHONGTIAN BROADBAND TECH
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