Seppo K Honkanen

6801677, Oct 5, 2004

Nov 9, 2001

10/052862

Karen M. Grace - Ranchos de Taos NM
Basil I. Swanson - Los Alamos NM
Seppo Honkanen - Tucson AZ

The Regents of the Universtiy of California - Los Alamos NM

G02B 612

385 12, 385 11, 385 14, 385 15, 385 16

The invention provides an apparatus and method for highly selective and sensitive chemical sensing. Two modes of laser light are transmitted through a waveguide, refracted by a thin film host reagent coating on the waveguide, and analyzed in a phase sensitive detector for changes in effective refractive index. Sensor specificity is based on the particular species selective thin films of host reagents which are attached to the surface of the planar optical waveguide. The thin film of host reagents refracts laser light at different refractive indices according to what species are forming inclusion complexes with the host reagents.

7190851, Mar 13, 2007

Oct 4, 2004

10/958965

Karen M. Grace - Ranchos de Taos NM, US
Basil I. Swanson - Los Alamos NM, US
Seppo Honkanen - Tucson AZ, US

Los Alamos National Security, LLC - Los Alamos NM

G02B 6/00

385 12, 385 11, 356484

The invention provides an apparatus and method for highly selective and sensitive chemical sensing. Two modes of laser light are transmitted through a waveguide, refracted by a thin film host reagent coating on the waveguide, and analyzed in a phase sensitive detector for changes in effective refractive index. Sensor specificity is based on the particular species selective thin films of host reagents which are attached to the surface of the planar optical waveguide. The thin film of host reagents refracts laser light at different refractive indices according to what species are forming inclusion complexes with the host reagents.

8077747, Dec 13, 2011

Sep 26, 2007

11/861923

Axel Schulzgen - Tucson AZ, US
Jacques Albert - Gatineau, CA
Nasser Peyghambarian - Tucson AZ, US
Seppo Honkanen - Tucson AZ, US
Li Li - Tucson AZ, US

The Arizona Board of Regents on Behalf of the University of Arizona - Tucson AZ

H01S 3/30

372 6, 372 5011, 372 96, 385123

An optical device includes an optical fiber having a core including multicomponent phosphate glasses, and a cladding surrounding the core, and a first fiber Bragg grating formed in a first portion of the core of the optical fiber and having an index modulation amplitude greater than 2×10.