How to design an easily deposited multi-band-pass filter

Sho Kamikawa

doi:10.1117/12.803710

11 November 2008 How to design an easily deposited multi-band-pass filter

Sho Kamikawa

Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 713432 (2008) https://doi.org/10.1117/12.803710
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

A systemic design on multi-bandpass filters is developed based on a plurality of Fabry-Perot(FP) interferometers, which are composed of a cavity between mirrors. Certain number of passbands can be built by selecting the number of cavities, while the band-width and the band- interval can be adjusted by the total layers contained in mirrors. By changing the configuration of mirrors and cavities a huge group of multi-band-pass filter will be developed. Among many multi-bandpass filters given here several of them are tested. A double-passband filter is deposited on a super-thin substrate of thickness about 5 μm. One of its passbands situates 1550nm, three rejection bands situate 1310nm, 1490nm and 1640nm make this filter very useful for B-PON and GE-PON in the fiber communications. A triple-bandpass filter with four rejected bands is deposited on glass, its high transmittance in passbands and high isolation in rejection band make it a valuable filter for Add/Drop device. In another deposition its three passbands can transmit blue, green and red (B, G and R) lights but reject other lights which otherwise become noise to the B, G and R light signals. The good performances of the filters deposited above prove that multi-bandpass filter designed by this way is easy to do.

Citation Download Citation

Sho Kamikawa "How to design an easily deposited multi-band-pass filter", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 713432 (11 November 2008); https://doi.org/10.1117/12.803710

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available