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Title: Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits

Abstract

A cutoff mesa rib waveguide provides single-mode performance regardless of any deep etches that might be used for electrical isolation between integrated electrooptic devices. Utilizing a principle of a cutoff slab waveguide with an asymmetrical refractive index profile, single mode operation is achievable with a wide range of rib widths and does not require demanding etch depth tolerances. This new waveguide design eliminates reflection effects, or self-interference, commonly seen when conventional rib waveguides are combined with deep isolation etches and thereby reduces high order mode propagation and crosstalk compared to the conventional rib waveguides.

Inventors:
 [1];  [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
871516
Patent Number(s):
5745630
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cutoff-mesa; isolated; rib; optical; waveguide; iii-v; heterostructure; photonic; integrated; circuits; cutoff; mesa; provides; single-mode; performance; regardless; deep; etches; electrical; isolation; electrooptic; devices; utilizing; principle; slab; asymmetrical; refractive; index; profile; single; mode; operation; achievable; wide; range; widths; require; demanding; etch; depth; tolerances; design; eliminates; reflection; effects; self-interference; commonly; seen; conventional; waveguides; combined; reduces; propagation; crosstalk; compared; integrated circuits; refractive index; wide range; integrated circuit; single mode; optical waveguide; electrical isolation; rib waveguide; optical wave; optic device; cutoff mesa; index profile; photonic integrated; /385/

Citation Formats

Vawter, Gregory A., and Smith, Robert E. Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits. United States: N. p., 1998. Web.
Vawter, Gregory A., & Smith, Robert E. Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits. United States.
Vawter, Gregory A., and Smith, Robert E. Thu . "Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits". United States. https://www.osti.gov/servlets/purl/871516.
@article{osti_871516,
title = {Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits},
author = {Vawter, Gregory A. and Smith, Robert E.},
abstractNote = {A cutoff mesa rib waveguide provides single-mode performance regardless of any deep etches that might be used for electrical isolation between integrated electrooptic devices. Utilizing a principle of a cutoff slab waveguide with an asymmetrical refractive index profile, single mode operation is achievable with a wide range of rib widths and does not require demanding etch depth tolerances. This new waveguide design eliminates reflection effects, or self-interference, commonly seen when conventional rib waveguides are combined with deep isolation etches and thereby reduces high order mode propagation and crosstalk compared to the conventional rib waveguides.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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