A New Approach Of Designing Optical Fiber Signal Processing

Jingshown Wu; Ing-Jiunn Su

doi:10.1117/12.976267

23 March 1986 A New Approach Of Designing Optical Fiber Signal Processing

Jingshown Wu, Ing-Jiunn Su

Proceedings Volume 0698, Real-Time Signal Processing IX; (1986) https://doi.org/10.1117/12.976267
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Optical fibers are excellent communication media with broad bandwidth, low loss, light weight, low cross talk, and immunity to electromagnetical interferences. With high speed lasers and photodetectors, optical fibers are also attractive for processing broadband signals. Many noncoherent optical fiber signal processing devices reported in literature were constructed to perform various functions such as frequency filtering, high speed pulse generation, encoding, and decoding. The basic components of an optical fiber signal processing device include light sources, delay lines, attenuators, directional couplers, and photodetectors. Recently the lattice optical fiber structures which are consisted of two-fiber directional couplers and various length of delay lines are investigated intensively. This structures can provide some good features such as complete mathematical formulation, straight forward implementation, modularity, and convenience for filter synthesis. However, due to the positive system property, i.e. non-negative coefficients of the noncoherent optical fiber signal processing devices, the traditional signal processing design methods and procedures can not be applied. For example, in the filter design, the passband band-width, transition band roll-off, and side lobe response can not be completely controlled without complicating the device structure. In this paper, we investigate the possibility of using optical fiber to design the filters with the traditional properties such as maxi-mally flat or equal-ripple responses. Then we will report a new approach, which employs window functions and uses two-fiber as well as multi-fiber directional couplers, to synthe-size filters with desired responses. The mathematical derivation, synthesis procedures, and frequency responses of various filters will also be presented.

Citation Download Citation

Jingshown Wu and Ing-Jiunn Su "A New Approach Of Designing Optical Fiber Signal Processing", Proc. SPIE 0698, Real-Time Signal Processing IX, (23 March 1986); https://doi.org/10.1117/12.976267

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical fibers

Signal processing

Filtering (signal processing)

Optical filters

Finite impulse response filters

Photodetectors

Directional couplers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years