摘要:

AbstractThe minimum reflection signature of polished plastic fiber splices has been measured using time domain reflectrometry. Predominant splice reflection sources due to surface roughness, inexact index matching, and fiber core misalignment were eliminated. An intrinsic reflection signature on top of the Rayleigh floor is clearly observable in all tested fibers.

ISSN:0895-2477    

DOI:10.1002/mop.4650050402

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractIn this article a new kind of balun network with filter characteristics and with arbitrary impedance transformation ratios is introduced, and a synthesis method for such balun networks using interdigital‐line structures is describe

ISSN:0895-2477    

DOI:10.1002/mop.4650050403

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractSimple formulas are derived for the sensitivity of dispersion, mode field radii, and cutoff wavelengths in single‐mode fibers due to arbitrary variations of the drawing ratio and the relative index difference simultaneously. For calculations only the propagation characteristic spectrum of the ideal fiber is required. Some applications are give

ISSN:0895-2477    

DOI:10.1002/mop.4650050404

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractReflection and transmission of plane waves by a unidirectionally conducting screen immersed in a bi‐isotropic medium is explore

ISSN:0895-2477    

DOI:10.1002/mop.4650050405

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractA novel amplifier configuration combining the output power handling capability and efficiency of a balanced amplifier with the gain of a cascaded amplifier is presented. Equations are presented for the gain dependency and the principle is verified by measurements.

ISSN:0895-2477    

DOI:10.1002/mop.4650050406

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractThe impact of local oscillator intensity noise on the performance of an optical phase‐diversity FSK receiver using a delay‐and‐multiplying discriminator is analyzed. Given the data rate, frequency deviation, laser linewidth, RIN noise, and thermal noise, we can obtain the minimum received signal power together with the corresponding optimal local oscillator power to achieve the required BER. Numerical results with system parameters given in [1] show that (PL)optis ‐1.46 dBm for RIN = ‐160 dB/Hz and ‐6.4 dBm for RIN = ‐150 dB/Hz when the thermal noise is 9

ISSN:0895-2477    

DOI:10.1002/mop.4650050407

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractConventional corrugated surfaces and strip gratings are used for eliminating specular reflections from a conducting surface for TE or TM polarization waves. This article presents the development of a dual slant strip grating for the elimination of specular reflections from conducting surfaces for both TE and TM polarizations, with an enhancement in bandwidth. Perfect blazing for n= ‐1 spectral order is also provided by the syste

ISSN:0895-2477    

DOI:10.1002/mop.4650050408

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractResonator measurement techniques for exploring electromagnetic parameters of bi‐isotropic (nonreciprocal chiral) materials are discussed. The bi‐isotropic materials are the most general linear isotropic materials, and the corresponding constitutive relations are governed by four parameters. A theory of resonator measurement techniques, based on the perturbation analysis, is developed. It is shown that the complex permittivity, permeability, and nonreciprocity (Tellegen) parameter of a small sample can be determined by measuring resonant frequency shifts in a rectangular resonator. To measure the nonreciprocity parameter, a method utilizing a rectangular resonator with two degenerated modes is propo

ISSN:0895-2477    

DOI:10.1002/mop.4650050409

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractA quarter‐wavelength‐coupled filter with prescribed frequency response is presented which uses a novel configuration of series‐cascaded microstrip lines as its resonating components. Design equations are obtained from ABCD parameters, with approximations taken to account for the double resonance characteristics of the filter's constituent networks. Experimental and theoretical results agree cl

ISSN:0895-2477    

DOI:10.1002/mop.4650050410

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractWe propose the use of degenerate two‐wave mixing in a Vernier optical fiber double‐ring resonator which consists of two single‐coupler fiber rings in series. With the degenerate two‐wave mixing, the Vernier operation can be achieved. In consequence, the effective free spectral range increases significantly and the signal beam is am

ISSN:0895-2477    

DOI:10.1002/mop.4650050411

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY