发明名称 |
Dielectric multi layer thin film optical filter having predetermined wavelength optical characteristics, a method of manufacturing the same, a program for designing the same, and an optical add-drop system using the dielectric multi layer thin film optical filter |
摘要 |
A dielectric multi layer thin film type band-pass filter provided with the function of transmitting a predetermined wavelength band, the function of reflecting a predetermined wavelength band or both functions, where a film structure of the dielectric multi layer thin film optical filter is configured of, with respect to the center wavelength lambda as a reference of the optical film thickness, (1) mirror layers each comprised of alternately layered layers (H) of high refractive index material and layers (L) of low refractive index material each with an optical film thickness of lambda/4, and (2) spacer layers each of which is configured in a combination of a layer (nH: n is an integer) of high refractive index material and a layer (nL: n is an integer) of low refractive index material each with an optical film thickness of lambda/4 and has a total optical film thickness of an integral multiple of lambda/2.
|
申请公布号 |
US2005174664(A1) |
申请公布日期 |
2005.08.11 |
申请号 |
US20040969956 |
申请日期 |
2004.10.22 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
ITO TAKAHIRO;MINAGAWA KAZUHIRO |
分类号 |
G02B1/11;G02B5/08;G02B5/28;G02B6/293;G02B7/182;G02B27/00;(IPC1-7):G02B5/08 |
主分类号 |
G02B1/11 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|