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:
-
- Albuquerque, NM
- Publication Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 871516
- Patent Number(s):
- US 5745630
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- 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. 1998.
"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 = {},
url = {https://www.osti.gov/biblio/871516},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}
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