Air slot beam splitting Fabry-Perot resonant cavity coupling laser

A Perot resonator and air slot technology, which is applied in the field of air slot splitting Fabry-Perot resonator coupled lasers, can solve the problems of increasing the complexity of the structure, increasing the manufacturing cost, etc., and achieves a simple structure and convenient manufacturing. , the effect of a large free spectral range

Active Publication Date: 2011-02-16
深圳市迅特通信技术股份有限公司 +1
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  • Application Information

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Problems solved by technology

This method expands the free spectral range, but increases the complexity of the structure and increases the manufacturing cost

Method used

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  • Air slot beam splitting Fabry-Perot resonant cavity coupling laser
  • Air slot beam splitting Fabry-Perot resonant cavity coupling laser
  • Air slot beam splitting Fabry-Perot resonant cavity coupling laser

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Embodiment Construction

[0026] The present invention will be further described according to the drawings and embodiments below.

[0027] Such as image 3 Shown is a schematic structural view of the first embodiment of the semiconductor laser of the present invention. The air slot splitting Fabry-Perot resonator coupled laser includes an active waveguide 1 providing gain, a Fabry-Perot resonator 2 generating comb reflection spectrum and a reflector 5 . The Fabry-Perot resonant cavity 2 is composed of a 30°-70° inclined to the active waveguide 1, which is filled with air or a low-refractive index medium, and is used to convert the light generated in the active waveguide 1 The air groove 21 transmitted into the Fabry-Perot resonator cavity 2 and not partially reflected by the transmitted light is lost, the first waveguide 23, the second waveguide 24, the first high reflection mirror 25 and the second high reflection mirror 26 Composition: the first waveguide 23 is placed coaxially with the active wave...

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Abstract

The invention discloses an air slot beam splitting Fabry-Perot resonant cavity coupling laser. A Fabry-Perot resonant cavity comprises an air slot, two waveguides and two high-reflectivity reflectors, wherein the air slot inclines to an active waveguide and can be filled with a medium; one waveguide and the active waveguide are coaxial and are respectively positioned at two sides of the air slot; angles between the two waveguides and the air slot are equal and positioned at the same side of the air slot and are coincide with the connecting port of the air slot; the high-reflectivity reflectors are respectively arranged on non-air slot connecting ports of the two waveguides; or tune electrodes cover the two waveguides and a phase matching electrode covers the active waveguide. Light is reflected and transmitted through the air slot for splitting beam. Two waveguides are additionally arranged to form the Fabry-Perot resonant cavity for selecting a die. The invention has the advantages of large free light spectrum range and low manufacture difficulty; and output wavelength of a laser can be largely tuned through regulating the optical length of the waveguides. The laser can operate in a single longitudinal mode.

Description

technical field [0001] The invention relates to a semiconductor laser, in particular to an air slot beam-splitting Fabry-Perot resonant cavity coupled laser capable of operating in a single longitudinal mode. Background technique [0002] The semiconductor laser, which appeared in 1962, has become a key device in information technology due to its high conversion efficiency, small size, light weight, high reliability, and single-chip integration. It is widely used in interferometry, spectroscopy, and optical communications. , optical sensing, laser processing and other fields. Especially in the field of optical communication, with the development of wavelength division multiplexing technology, the requirements for the performance and manufacture of semiconductor lasers are getting higher and higher. A large number of semiconductor lasers need to be used in optical networks. Improving the cost performance of semiconductor lasers is a key factor to reduce the cost of optical n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/10H01S5/026
Inventor 张璇王磊何建军
Owner 深圳市迅特通信技术股份有限公司
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