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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. 7 figs.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
644420
Patent Number(s):
5745630
Application Number:
PAN: 8-603,841
Assignee:
Sandia Corp., Albuquerque, NM (United States)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 28 Apr 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; INTEGRATED CIRCUITS; WAVEGUIDES; ELECTRO-OPTICAL EFFECTS; OPERATION; SEMICONDUCTOR DEVICES; ETCHING

Citation Formats

Vawter, G A, and Smith, R E. Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits. United States: N. p., 1998. Web.
Vawter, G A, & Smith, R E. Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits. United States.
Vawter, G A, and Smith, R E. Tue . "Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits". United States.
@article{osti_644420,
title = {Cutoff-mesa isolated rib optical waveguide for III-V heterostructure photonic integrated circuits},
author = {Vawter, G A and Smith, R 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. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {4}
}