Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for collective production of optical filter components and element wafer

A technology of optical filtering and components, used in optical components, coupling of optical waveguides, instruments, etc.

Inactive Publication Date: 2005-08-10
E2V SEMICON
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Thus, in a communication network, the problem is to be able to collect the light corresponding to a given channel without disturbing the light in adjacent channels

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for collective production of optical filter components and element wafer
  • Method for collective production of optical filter components and element wafer
  • Method for collective production of optical filter components and element wafer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 with figure 2 The optical filter element 1 fabricated on a wafer is shown. The optical filter element 1 is fabricated on a substrate 2, in which only the part carrying the element 1 is shown. In practice, a large number of components are fabricated on one or the same wafer, for example, the components are placed on the substrate 2 identical to each other and side by side. The active part of element 1 includes Bragg mirrors 3 and 4 separated by an air gap 5. The mirrors 3 and 4 are connected to the main part 6 and attached to the substrate 2 through the arm 7, for example, figure 2 As shown, there are 4 arms 7. The arm 7 provides a certain degree of flexibility for the mirrors 3 and 4, and is used to adjust the thickness of the air gap 5, thereby adjusting the central wavelength filtered by the element 1. The active part of the element 1 is covered with a light-transmitting cover layer 8. A spacer 9 keeps a certain distance between the cover layer 8 and the mirr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention concerns wavelength selective and tunable optical filters, allowing through the light of a narrow optical spectral band, centered about an adjustable wavelength, and blocking wavelength outside said band. More particularly, the invention concerns a method for collective production of optical filtering component (1), which consists in producing on a transparent substrate (2) a plurality of optical filtering components (1). The method further consists in covering the plurality of components with a transparent collective cap (8), in optically testing each component (1) individually and in separating the different components (1) from one another. The invention also concerns a wafer of components comprising a transparent substrate (2) whereon are produced a plurality of optical filtering components (1), a transparent cap (8) collectively covering the components (1). The wafer further comprises means for individually testing each component (1).

Description

Technical field [0001] The present invention relates to a tunable wavelength selective optical filter, which can allow light of a narrow spectral band whose center is near a tunable wavelength to pass through, while blocking wavelengths outside the spectral band. The adjustment of the center wavelength of the narrow spectral band can be performed by electronic devices. Background technique [0002] It can be seen from the following that the term "light" understood in a broad sense specifically includes the spectral band in the infrared region, and a main application of the present invention is to filter light in various optical fiber communication bands between 1.3 and 1.61 microns. [0003] The advantage of the 1.3 to 1.61 micron band comes from the fact that the existing optical fiber made of glass has low attenuation in this band, so optical signals can be transmitted over a very long distance. The present invention will be described below in conjunction with this optical wave...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/00G02B6/34
CPCG02B26/001G02B6/29358G02B6/29395
Inventor 让-皮埃尔·穆瓦格扎维埃·于贡
Owner E2V SEMICON