Manufacturing method of optical waveguide mode converter and mode converter
A technology of mode converter and manufacturing method, which is applied in the field of optical communication, can solve the problems that the conversion efficiency of the mode converter cannot be improved well, the size of the mode converter cannot be controlled, the propagation length of the grating structure is long, and the insertion loss can be achieved. Low, small size, good processing tolerance effect
Inactive Publication Date: 2021-04-09
SUZHOU CREALIGHTS TECH
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However, in the case of weak coupling, the grating structure requires a long propagation length, the size of the mode converter cannot be controlled, and the energy between the waveguides cannot be completely transferred under the strong coupling state, and the conversion efficiency of the mode converter cannot be well improved.
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0031] Such as figure 1 Shown, the manufacturing method of a kind of optical waveguide mode converter of the present invention comprises steps:
[0032] (A) Design an integrated waveguide, the waveguide has a first section as an input waveguide, a second section as a transition waveguide, and a third section as an output waveguide;
[0033] (B) Determine the structure and relative position of the first and third segments according to the high-order mode to be...
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Abstract
The invention discloses a manufacturing method of an optical wave guide mode converter; an integrated wave guide body is selected and is provided with a first section, a second section and a third section, the structures and relative positions of the first section and the third section are determined according to a high-order mode order to be converted and mode field symmetry, the structure of the second section is determined by adopting an optimization method, and the second section has a characteristic of smooth gradual change along the propagation direction, and has a smooth edge. The invention further discloses the mode converter which is manufactured by adopting the manufacturing method of the optical waveguide mode converter. The mode converter manufactured by the manufacturing method of the optical waveguide mode converter is small in size, low in insertion loss, high in conversion interest rate and high in bandwidth, and the manufacturing method of the optical waveguide mode converter is good in processing tolerance.
Description
technical field [0001] The invention relates to the technical field of optical communication, and more precisely relates to a manufacturing method of an optical waveguide mode converter and the mode converter. Background technique [0002] With the rapid development of information technology, the demand for bandwidth in the global optical communication market is becoming more and more urgent. At present, the improvement of bandwidth is mainly through the following three schemes: 1. Improvement of single-channel transmission rate; 2. Improvement of transmission channel; 3. Wavelength division multiplexing (WDM) or mode division multiplexing (MDM) technology. For the above schemes 1 and 2, the improvement of the rate and the improvement of the transmission channel will inevitably bring about the increase of the cost and the improvement of the technical complexity, which does not meet the market demand. In scheme 3, the mode division multiplexing technology is a technology tha...
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IPC IPC(8): G02B6/13G02B6/14
CPCG02B6/13G02B6/14
Inventor 林天营孙旭汪军平陈晓刚胡朝阳
Owner SUZHOU CREALIGHTS TECH