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Optical interleaver and deinterleaver

A deinterleaver, optical technology, used in instruments, light guides, optics, etc., can solve problems such as insufficient bandwidth

Inactive Publication Date: 2012-10-10
FINISAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increasing demand for bandwidth from broadband, wireless and mobile users, the conventional 50GHz DWDM system is increasingly unable to provide sufficient bandwidth

Method used

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  • Optical interleaver and deinterleaver
  • Optical interleaver and deinterleaver
  • Optical interleaver and deinterleaver

Examples

Experimental program
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Embodiment Construction

[0020] Embodiments of the invention relate to optical interleavers and deinterleavers. Some embodiments can increase the transmission capacity of long-distance DWDM optical communication systems.

[0021] Various aspects of embodiments of the present invention are now described with reference to the drawings. It is to be understood that the drawings are diagrams and schematic representations of these embodiments and are not limiting of the invention, nor are they necessarily drawn to scale.

[0022] Referring first to the diagram showing an example optical deinterleaver 100 figure 1 . as in figure 1 As shown in , the example optical deinterleaver 100 includes a housing 102 and first, second and third single fiber collimators 104 , 106 and 108 .

[0023] In some embodiments, optical deinterleaver 100 is configured to receive an interleaved optical signal at first collimator 104 having approximately 10 Gb / s data in even channels and approximately 10 Gb / s data in odd channels...

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PUM

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Abstract

Optical interleavers and deinterleavers are provided. In one example embodiment, an optical deinterleaver includes first, second, and third filter cells interleaved with first and second waveplates. The filter cells are configured to filter optical signals propagating on first, second, and third paths of an optical loop. The optical deinterleaver also includes a retro reflector optically coupled with the filter cells and waveplates. The retro reflector is configured to reflect the optical signals between the first path and the second and third paths to form the optical loop. The optical deinterleaver further includes first, second, and third single-fiber collimators optically coupled to the first, second, and third paths of the optical loop, respectively.

Description

Background technique [0001] An optical interleaver is a three-port fiber optic passive device used to interleave two sets of dense wavelength division multiplexing (DWDM) channels (odd and even channels) into a composite signal stream. For example, an optical interleaver may be configured to receive two multiplexed signals with a frequency division of 100 GHz and interleave the two multiplexed signals to form a denser DWDM with channels spaced 50 GHz apart. An optical interleaver can also function as a deinterleaver by reversing the direction of signal flow through the interleaver. [0002] Optical interleavers are widely used in DWDM systems and have become important building blocks for optical networks with high data rate transmission. Optical interleavers are in some ways easier to manufacture than other bandpass filtering technologies such as thin-film interference filters and arrayed waveguide gratings. With the improvement of broadband, wireless and mobile users' deman...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/293H04J14/02
CPCG02B6/29362G02B6/29386
Inventor 陈凡闻震利兰发华张大鹏
Owner FINISAR
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