Phased-array integrated optical chip and optical phased-array emitting device

A technology of optical phased array and integrated optics, which is applied in the field of optical phased array, can solve the problem that the system is not easy to miniaturize, and achieve the effect of solving the problem of heat dissipation

Pending Publication Date: 2019-04-05
CHINA SCI PHOTON CHIP HAINING TECH CO LTD
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Problems solved by technology

[0005] Therefore, in order to overcome the problem that the system is not easy to miniaturize due to the use of off-chip lasers to increase the optical power in the prior art, a multiple laser chip and phased array are integrated on the same chip, and multiple lasers are emitted. The wavelength beam realizes the power combination through the wave combining device, and provides an optical phased array emission device with high power input for the phased array

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a phased-array integrated optical chip. The phased-array integrated optical chip comprises a combiner, a 1xN beam splitter, a phased waveguide array and an output region connected in sequence, wherein the combiner is provided with an input end corresponding to an emitted beam of a laser chip, and the output end of the combiner is connected with the 1xN beam splitter; and the1xN beam splitter is used for dividing one channel of light into multiple channels of light and outputting the multiple channels of light to the phased waveguide array. Through connection of the emitted beam, output power of multiple light sources can be synthesized, and an emitting device can have high output power on the premise of not enhancing heat dissipation difficulty. Meanwhile, the invention provides an optical phased-array emitting device. The optical phased-array emitting device comprises the phased-array integrated optical chip and the laser chip integrated on the phased-array integrated optical chip. According to the scheme of integrating phased functions on the same module or chip, the structure is compacter.

Description

technical field [0001] The invention relates to the technical field of optical phased array, in particular to a phased array integrated optical chip and an optical phased array emitting device. Background technique [0002] Optical phased array technology refers to the generation of a specific phase difference between the arrayed waveguides through modulation to realize the rotation of the beam angle. Compared with mechanical rotation and MEMS beam scanning schemes, optical phased array radar does not contain rotating elements and has a scanning speed Fast, large scanning range, high integration, high reliability, low cost and other advantages. The principle of realizing the phase modulation of optical phased array waveguide includes the electro-optic effect of liquid crystal, lead lanthanum zirconate titanate ceramics, lithium niobate and other materials, the thermo-optic effect or plasma dispersion effect of silicon-based integrated optical chips, etc. Among them, the sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/4814G01S7/4817
Inventor 刘敬伟李文玲田立飞张新群
Owner CHINA SCI PHOTON CHIP HAINING TECH CO LTD
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