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Colorless tunable dispersion compensator employing a planar lightwave circuit and a deformable mirror

一种变形反射镜、平面光波的技术，应用在光系统领域，能够解决电子色散补偿不适实用等问题

Inactive Publication Date: 2006-09-06
LUCENT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the case of 40Gb / s, electronic dispersion compensation is not suitable for practical use. In addition, the temperature change of the fiber in the long link is enough to require the use of TDC

Method used

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  • Colorless tunable dispersion compensator employing a planar lightwave circuit and a deformable mirror
  • Colorless tunable dispersion compensator employing a planar lightwave circuit and a deformable mirror
  • Colorless tunable dispersion compensator employing a planar lightwave circuit and a deformable mirror

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Embodiment Construction

[0014] Generally speaking, the waveguide grating router (WGR)-based tunable dispersion compensator according to the present invention is colorless, has fast single-knob tuning, effectively utilizes bandwidth, can provide a large tuning range, and is compact. The WGR-based TDC according to the present invention uses a deformable mirror instead of a thermo-optic lens, thereby significantly reducing power consumption and size. Such as figure 1 As shown, by "clamping" a symmetric WGR at its center, high resolution and polarization independence are achieved. In some embodiments, a half-wave plate is inserted in the symmetric WGR (also as figure 1 Shown).

[0015] Mentioning "one embodiment", "an embodiment" or similar expressions herein means that a specific feature, structure, operation, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases or expressions herein do not necessarily all re...

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PUM

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Abstract

A colorless, waveguide-grating-router-based tunable dispersion compensator includes a planar lightwave circuit and a deformable mirror, optically coupled to each other by a plano-cylindrical glass lens such that a fast tuning speed and single-knob dispersion adjustment are obtained. In a further aspect of the present invention, the waveguide-grating router is pinched, symmetrical about its center line, and has a half-wave plate inserted therein to provide polarization independence. In a still further aspect of the present invention, the deformable mirror includes, reflective film attached to opposing piezo-electric actuators.

Description

Technical field [0001] The present invention relates to an optical system for communication, and more particularly, to a colorless tunable dispersion compensator suitable for use in an optical communication system using wavelength division multiplexing at a high data rate. Background technique [0002] Many advances in electronic manufacturing technology and digital system architecture have produced a large number of commercial and consumer devices that can generate information and transfer information between each other, so the demand for information communication services is increasing. This increase in demand for information and communication services has led to a corresponding increase in the demand for transmission capacity. [0003] One way to increase transmission capacity is to provide additional communication network infrastructure. However, huge costs associated with building additional communication network infrastructure are incurred. [0004] Another way to meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/32G02B6/26H04B10/18H04B10/12
CPCG02B6/12011G02B6/29394G02B6/12033G02B6/12023G02B26/0825G02B6/12019G02B6/12016G02B6/29395
Inventor 克里斯托弗尔·理查德·多尔丹·马克·马罗姆
Owner LUCENT TECH INC
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