Two dimension array integrated module of wavelength selective distribution feedback laser

A laser array and distributed feedback technology, which is applied to laser parts, lasers, laser devices, etc., can solve the problems that are not suitable for sparse wavelength division multiplexing optical communication systems, large volume, complex process, etc.

Inactive Publication Date: 2007-07-25
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

12 gratings with different periods are produced by expensive electron beam scanning exposure, which is complex and costly
The packaging structure of the device adopts hybrid integration, using external couplers and optical isolators, compared with monolithically integrated components, the cost is high and the volume is large
Document 2 (IEEE P.T.L., 11, 1999, 51) proposed another monolithical...

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  • Two dimension array integrated module of wavelength selective distribution feedback laser
  • Two dimension array integrated module of wavelength selective distribution feedback laser

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] The material system of the present invention is an indium phosphide / indium gallium arsenic phosphide system.

[0021] The wavelength-selectable distributed feedback laser two-dimensional array integrated assembly provided by the present invention includes sequentially connected optical amplifiers, Y-shaped couplers, and a 2*2 distributed feedback laser array. Part A in Figure 1 is a 2*2 distributed feedback laser array, part B is a Y-type coupler, and part C is an optical amplifier. The three parts constituting the assembly of the present invention are described separately below.

[0022] Part A 2*2 distributed feedback laser array includes from bottom to top: InP substrate buffer layer 1, lower waveguide layer InGaAsP 2, InGaAs / InGaAsP multiple quantum well layer 3, corresponding to the bandgap Wavelength 1.55um, upper waveguide layer...

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Abstract

Using indium phosphide / indium - gallium - arsenic - phosphor material system, the IC module of 2D array of laser includes optical amplifier, Y type coupler, and 2 * 2 distributed feedback laser array connected in sequence. The 2 * 2 distributed feedback laser array prepares four Bragg gratings with different cycles arranged in 2 * 2 matrixes on up waveguide layer. Advantages of the invention are that four selectable wavelengths with wavelength interval as 20nm are provided to meet requirement of channel interval in rarefaction wavelength division multiplex. Comparing with traditional technique for opto-electronic integrative module, the disclosed preparation technique is equable simple, convenience, easy of operation. Moreover, the disclosed integrative module is easy to be integrated to other opto-electronic devices such as modulator, and pattern converter etc.

Description

technical field [0001] The invention relates to the technical field of semiconductor optoelectronic integration, in particular to a two-dimensional array integrated component of a wavelength-selectable distributed feedback laser. Background technique [0002] The current optical fiber communication system adopts wavelength division multiplexing technology, and sparse wavelength division multiplexing technology (CWDM) is an important multiplexing technology for metropolitan area network and fiber-to-the-home. Simplicity and low cost are the basic requirements for optoelectronic devices used in sparse wavelength division multiplexing communication networks. In the standard formulated by ITU-T, the channel multiplexing interval of the sparse wavelength division multiplexing communication network is as wide as 20nm, and the light source is required to have a wavelength selectivity with an interval of 20nm, and the cost is low and the performance is stable. Semiconductor optoele...

Claims

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Application Information

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IPC IPC(8): H01S5/40H01S5/323H01S5/343H01S5/22H01S5/026
Inventor 谢红云王保军周帆王圩
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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