Highly accurate etching of ridge-waveguide directional couplers using in situ reflectance

Vawter, G.A.; Klem, J.F.; Hadley, G.R.; Kravitz, S.H.
January 1993
Applied Physics Letters;1/4/1993, Vol. 62 Issue 1, p1
Academic Journal
Examines the etching of ridge-waveguide directional couplers. Use of in situ reflectance monitoring; Achievement of accurate etch rate and etch depth; Computation of added loss due to coupling length error; Importance of waveguides in photonic integrated circuits.


Related Articles

  • Very short intracavity directional coupler for high-speed communication. Griffel, Giora // Applied Physics Letters;7/12/1993, Vol. 63 Issue 2, p135 

    Presents a novel structure of directional coupler inside a Fabry Perot cavity. Observation on the shortest modulation coupler; Use of back mirror with unit reflectivity; Presence of upper frequency limit in the microwave lumped structure.

  • An in-depth analysis of reflections in MMI couplers using optical low-coherence reflectometry: design optimization and performance evaluation. Gottesman, Y.; Rao, E.V.K.; Piot, D.; Vergnol, E.; Dagens, B. // Applied Physics B: Lasers & Optics;2001, Vol. 73 Issue 5/6, p609 

    This paper describes a comprehensive report on the high potential of optical low-coherence reflectometry (OLCR) measurements to assist the design optimization and performance evaluation of symmetric MMI couplers. Using three sets of deep-ridge InGaAsP–InP couplers on InP and by performing...

  • Electron waveguide coupler: A four-terminal device. Jian Wang; Hong Guo; Harris, R. // Applied Physics Letters;12/9/1991, Vol. 59 Issue 24, p3075 

    Presents an electron waveguide coupler modeled as a four-terminal device. Consideration of the scattering at the interaction region; Assessment of transmission and reflection coefficients; Observation of periodic switching of the electron wave between waveguides.

  • Strategies For Planar Directional Couplers. Maloratsky, Leo G. // Microwaves & RF;Aug2010, Vol. 49 Issue 8, p80 

    The article discusses the methods used in implementing planar directional couplers. It mentions that couplers could be fabricated in discrete forms, whether on printed-circuit boards (PCBs) or as part of monolithic-microwave integrated circuits (MMICs). Furthermore, comparison of methods and...

  • MINIATURIZED BRANCH- LINE COUPLER EMPLOYING PERIODICALLY ARRAYED GROUNDED-STRIP STRUCTURE. Young Yun; Young-Bae Park; Suk-Youb Kang; In-Ho Kang; Ji-Won Jung; Kyu-Ho Park // Microwave Journal;Dec2009, Vol. 52 Issue 12, p82 

    In this work, a short guided-wavelength coplanar waveguide employing a periodically arrayed grounded-strip structure (FAGS) is proposed for the first time. Using a coplanar waveguide employing PAGS, a miniaturized branch-line coupler was realized in a silicon radio frequency integrated circuit...

  • ISOLATION IC IS TIGHT, FAST, AND FURIOUS. Schweber, Bill; Granville, Fran // EDN;5/27/2004, Vol. 49 Issue 11, p18 

    The article provides information on the five-channel IL261 IsoLoop integrated circuit from NVE Corp. These devices use spintronic giant magnetoresistors, along with supporting complimentary metal-oxide semiconductor circuitry, to provide isolation. The vendor claims these solid-state couplers...

  • Components.  // Microwave Journal;Oct2010, Vol. 53 Issue 10, p162 

    The article evaluates several microwave components including the Xinger-III brand line of three dB hybrid and directional couplers from Anaren Inc., the AE1706L8769 low pass filter from Anatech Electronics Inc., and the MEMS Si cavity filter series from Bowei Integrated Circuits Co. Ltd.

  • Wavelength selective coupler with vertical gratings on silicon chip. Ikeda, Kazuhiro; Nezhad, Maziar; Fainman, Yeshaiahu // Applied Physics Letters;5/19/2008, Vol. 92 Issue 20, p201111 

    We propose a wavelength selective coupler using vertical grating structure on silicon chip and discuss the operation principle and the analytic design procedure. The transmission spectra expected by the procedure agree with finite difference time domain simulation results. We then fabricate the...

  • FIXING THE ERROR.  // Underground Focus: The Magazine of Below-Ground Damage Preventio;2014, Vol. 28 Issue 6, p22 

    The article discusses how to solve error in locating underground electric line when the electric system was energized by an inductive coupler.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics