Microwave Fiber-Optics Delay Line.

reportActive / Technical Report | Accession Number: ADA082505 | Open PDF

Abstract:

A microwave delay line is one of the devices used in EW systems for preserving the frequency and phase contents of rf signals. For such applications, delay lines are required to have large dynamic range, wide bandwidth, low insertion loss, and a linear response. The basic components of a fiber-optics delay line are an optical source, a wideband optical modulator, a spool of single-mode fiber with appropriate length to provide a given microwave signal delay, and a high-speed photodetector with an rf amplifier. This contract program is to study the feasibility of such a fiber-optic delay line in the frequency range of 4.0 to 6.5 GHz. The modulation scheme studied is the direct modulation of injection lasers. The most important issue identified is the frequency response of the injection laser and the photodetector.

Author(s):
Slayman, C. ; Yen, H. W.
Author Organization(s):
HUGHES RESEARCH LABS MALIBU CA
Descriptive Note:
Final rept. 25 Jun-24 Dec 79,
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00173-79-C-0098
 Subject Terms
Modernization Areas:
Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*FIBER OPTICS, *MICROWAVE FREQUENCY, *DELAY LINES, INJECTION LASERS, SEMICONDUCTOR LASERS, LOW LOSS, BROADBAND, PHOTODETECTORS, DATA LINKS, INSERTION LOSS, FREQUENCY RESPONSE, TRANSMISSION LOSS, DYNAMIC RANGE, LIGHT MODULATORS, PHASE CONTROL
Field(s)/Group(s):
Fiber Optics and Integrated Optics
Report Date:
1980 Jan 01