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Multi-wavelength laser, its production method and use

A technology of multi-wavelength lasers and lasers, applied in lasers, laser components, semiconductor lasers, etc., can solve the problems of low output power, poor wavelength selectivity, and high difficulty in integrating multi-wavelength lasers, and achieve high output optical power and wavelength selectivity Good results

Inactive Publication Date: 2009-04-08
SUOOTER TECH BEIJING LTD
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  • Claims
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Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a multi-wavelength laser and its preparation method and application to solve the problems of high integration difficulty, poor wavelength selectivity and low output power of multi-wavelength lasers in the prior art

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  • Multi-wavelength laser, its production method and use
  • Multi-wavelength laser, its production method and use
  • Multi-wavelength laser, its production method and use

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. For the sake of clarity and simplicity, detailed detailed descriptions of known functions and constructions in the devices described herein will be omitted when it may obscure the subject matter of the present invention.

[0035] First, the multi-wavelength laser described in the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0036] Such as figure 1 as shown, figure 1 Shown is a schematic diagram of the structure of a multi-wavelength laser based on the quantum confinement effect in an embodiment of the present invention. The multi-wavelength laser includes at least: a packaging substrate, a thermoelectric cooler, a substrate, a carrier, and a laser chip, etc., wherein the packaging substrate and thermoelectric The cooler is fixed together by solder, the thermoelectric cooler and subst...

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Abstract

The invention discloses a multi-wavelength laser, a preparation method and the application thereof. The multi-wavelength laser is at least composed of an encapsulation substrate, a thermoelectric cooler, a base plate, a piece of slide glass and a laser chip, wherein, the laser chip at least consists of a semiconductor substrate, distributed feedback Bragg raster display, a lower cladding, a lower barrier layer, an active region, an upper barrier layer, an upper cladding, the distributed feedback Bragg raster display and a metal electrode in sequence; the active region is internally provided with an active gain medium which is formed by a plurality of preconcerted quantum dot belts which are made of semiconductor dielectric material and have modulatory components and sizes, and each of the quantum dot belts internally contains a plurality of quantum dots having the same size and uniform distribution; the quantum dots are arranged in line, each of the quantum dot belts is corresponding to different lasing wavelengths, and the sizes of the quantum dots in the quantum dot belts are not the same as each other; the invention is characterized by good wavelength selectivity, high conversion quantum efficiency, high light output power, etc.

Description

technical field [0001] The invention relates to the technical field of optoelectronic devices, in particular to a multi-wavelength laser and its preparation method and application. Background technique [0002] At present, in WPON (Wavelength Division Multiplexing Passive Optical Network), a plurality of OLTs (Optical Line Terminals) in the CO (Central Office) generate a plurality of downlink optical signals with different wavelengths to provide a variety of different communication services; An ONU (Optical Network Unit) receives the corresponding downlink optical signal, and transmits the uplink optical signal to the optical line terminal through the transmission fiber; through the access to the intermediate ODN (passive optical distribution network) node, the passive optical network architecture is achieved. [0003] Wherein, the central office generally adopts multiple DFB (distributed feedback Bragg (Bragg)) lasers or multi-wavelength lasers to generate an uplink optical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/34H01S5/343H01S5/022H01S5/024H04Q11/00
Inventor 黄少华
Owner SUOOTER TECH BEIJING LTD
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