Low-dispersion weave device
A dispersion and resonator technology, applied in the field of interferometers, can solve problems such as unreached or realized, insufficient interweaving and deinterleaving capabilities, etc.
Inactive Publication Date: 2007-03-14
JDS尤尼费斯公司(加拿大) +1
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Problems solved by technology
Although state-of-the-art MGTI systems produce useful spectrum, the interleaving and deinterleaving capabilities are not sufficient for systems at 25 GHz and below
Furthermore, prior art systems do not provide interferometers with relatively low scatter capable of interleaving and deinterleaving systems at 25 GHz or less
Therefore, no matter what precise indicators, features and advantages are provided by the above-mentioned prior art systems, they all fail to meet or realize the object of the present invention
Method used
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[0066] Although the invention has been illustrated and described in one or more preferred embodiments, the invention can be made in many different structures, forms and materials. One or more embodiments of the present invention have been described in the accompanying drawings, and will be described in detail here. It should be understood that this disclosure is an example of the principles of the invention and related functional descriptions about its structure, and is not a description of the present invention. It is limited to the examples or the scope described in the examples. Those skilled in the art will envision many other possible variations without departing from the scope of the invention.
[0067] Figure 3a depicts an interferometer 300 in accordance with the principles of the present invention. Typically, interferometer 300 includes two Gires-Tourois (GT) etalons in a Michelson interferometer configuration. As shown, interferometer 300 includes a beam splitter 3...
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The present invention relates to an interferometer useful in the interleaving and deinterleaving of optical wavelength channels. Typically the invention comprises a beamsplitter and two resonators, e.g. GT etalons or ring resonators. The beamsplitter splits an input beam of light into a first sub-beam directed to follow a first path and a second sub-beam directed to follow a second path. The first resonator has a first effective cavity length and receives the first sub-beam. The second resonator has a second effective cavity length and receives the second sub-beam. The first path and the second path have an effective optical path difference approximately equal to one-half the first effective cavity length. In one embodiment, the front plates of the GT etalons each have a different reflectivity, and are selected to provide a desired spectral response. In another embodiment, the two resonators are slightly de-phased from one another such that the positive dispersion slope of the first resonator is aligned with the negative dispersion slope of the second resonator.
Description
technical field [0001] The present invention relates to interferometers for use in optical communication networks, and more particularly to optical signal interleavers / deinterleavers designed to produce substantially reduced amounts of dispersion. Background technique [0002] In a multiplexed optical communication network, a single optical fiber usually carries multiple independent data channels, and each data channel is assigned to a different optical wavelength. Such networks are known as wavelength division multiplexing (WDM) networks. As the signal propagates through the network, the data on the different channels can be separated or combined using optical frequency filters, especially an interleaver / deinterleaver (hereinafter "interleaver"). [0003] An interleaver is an optical multiplexer that, when operating as an interleaver, combines a subset of channels from different optical fibers into a single beam. When operating as a deinterleaver, it splits a single beam ...
Claims
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IPC IPC(8): H04J14/02H04B10/12H04B10/02G02B6/34
CPCG02B6/2766G02B6/29349G02B6/29302G02B6/272G02B6/2773G02B6/29352G02B6/12007G02B6/29347G02B6/29358G02B6/29386
Inventor 奈杰尔·科普纳基姆·L·谭克里斯托弗·J·亚伯拉罕托马斯·杜斯利尔玛丽·J·皮卡德
Owner JDS尤尼费斯公司(加拿大)