[ { "id": "authors:aew33-ms177", "collection": "authors", "collection_id": "aew33-ms177", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:SHEol78", "type": "article", "title": "Transverse Bragg-reflector injection lasers", "author": [ { "family_name": "Shellan", "given_name": "J. B.", "clpid": "Shellan-J-B" }, { "family_name": "Ng", "given_name": "W.", "clpid": "Ng-W" }, { "family_name": "Yeh", "given_name": "P.", "clpid": "Yeh-P" }, { "family_name": "Yariv", "given_name": "A.", "clpid": "Yariv-A" }, { "family_name": "Cho", "given_name": "A.", "clpid": "Cho-A" } ], "abstract": "A GaAs-GaAlAs injection laser has been tested that confines light in the lateral dimension (normal to junction plane) by a multilayer Bragg reflector. In the past, light has been confined as a result of the higher-index guiding region and resulting evanescent fields.", "doi": "10.1364/ol.2.000136", "issn": "0146-9592", "publisher": "Optical Society of America", "publication": "Optics Letters", "publication_date": "1978-05", "series_number": "5", "volume": "2", "issue": "5", "pages": "136-138" }, { "id": "authors:67y7x-qqt61", "collection": "authors", "collection_id": "67y7x-qqt61", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120803-092240996", "type": "article", "title": "Statistical analysis of Bragg reflectors", "author": [ { "family_name": "Shellan", "given_name": "J. B.", "clpid": "Shellan-J-B" }, { "family_name": "Agmon", "given_name": "P.", "clpid": "Agmon-P" }, { "family_name": "Yeh", "given_name": "P.", "clpid": "Yeh-P" }, { "family_name": "Yariv", "given_name": "A.", "clpid": "Yariv-A" } ], "abstract": "The effects on reflectivity of a statistical variation in the thickness of layers in a multilayered Bragg reflector are studied. Analytic expressions are obtained for \u3008\u03c1\u3009 and \u3008\u03c1\u03c1*\u3009, the expected value of the reflection and reflectivity coefficients as a function of \u03c3, the standard deviation in layer thickness. These expressions are then compared with values obtained using a computer routine which \"builds\" a reflector with the desired parameters and \u03c3 value, and then calculates the reflection. The results of the computer experiment are presented in the form of p(\u03c1\u03c1*), the probability distribution function of a statistical Bragg reflector. Finally, simple phenomenological expressions are presented for the reflectivity probability distribution.", "doi": "10.1364/JOSA.68.000018", "issn": "0030-3941", "publisher": "Optical Society of America", "publication": "Journal of the Optical Society of America", "publication_date": "1978-01", "series_number": "1", "volume": "68", "issue": "1", "pages": "18-27" }, { "id": "authors:zngjd-f1t16", "collection": "authors", "collection_id": "zngjd-f1t16", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:HONapl77", "type": "article", "title": "Broad-band grating filters for thin-film optical waveguides", "author": [ { "family_name": "Hong", "given_name": "C. S.", "clpid": "Hong-C-S" }, { "family_name": "Shellan", "given_name": "J. B.", "clpid": "Shellan-J-B" }, { "family_name": "Livanos", "given_name": "A. C.", "clpid": "Livanos-A-C" }, { "family_name": "Yariv", "given_name": "A.", "clpid": "Yariv-A" }, { "family_name": "Katzir", "given_name": "A.", "clpid": "Katzir-A" } ], "abstract": "Broad-band grating filters have been fabricated on glass thin-film waveguides and evaluated with a tunable dye laser. Measured and calculated filter responses were found to be in good agreement. Grating filters with bandwidths of 300 and 150 \u00c5, and reflectivities of 18 and 40%, respectively, are reported.", "doi": "10.1063/1.89660", "issn": "0003-6951", "publisher": "Applied Physics Letters", "publication": "Applied Physics Letters", "publication_date": "1977-08-15", "series_number": "4", "volume": "31", "issue": "4", "pages": "276-278" }, { "id": "authors:4yepy-ycj68", "collection": "authors", "collection_id": "4yepy-ycj68", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:LIVao77", "type": "article", "title": "Linearity and enhanced sensitivity of the Shipley AZ-1350B photoresist", "author": [ { "family_name": "Livanos", "given_name": "A. C.", "clpid": "Livanos-A-C" }, { "family_name": "Katzir", "given_name": "A.", "clpid": "Katzir-A" }, { "family_name": "Shellan", "given_name": "J. B.", "clpid": "Shellan-J-B" }, { "family_name": "Yariv", "given_name": "A.", "clpid": "Yariv-A" } ], "abstract": "The properties of the Shipley AZ-1350B positive photoresist used with the Shipley AZ-303A developer were investigated. It was found that the use of AZ-303A developer results in a significant improvement of the sensitivity and the linearity of the photoresist. The unexposed etch rate of the photoresist was 35 \u00c5 \u00b1 5 \u00c5/sec. Gratings of high efficiency have been successfully fabricated using the above combination of photoresist and developer.", "issn": "0003-6935", "publisher": "Optical Society of America", "publication": "Applied Optics", "publication_date": "1977-06", "series_number": "6", "volume": "16", "issue": "6", "pages": "1633-1635" }, { "id": "authors:9y25a-mrz10", "collection": "authors", "collection_id": "9y25a-mrz10", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:KATieeejqe77", "type": "article", "title": "Chirped gratings in integrated optics", "author": [ { "family_name": "Katzir", "given_name": "A.", "clpid": "Katzir-A" }, { "family_name": "Livanos", "given_name": "A. C.", "clpid": "Livanos-A-C" }, { "family_name": "Shellan", "given_name": "J. B.", "clpid": "Shellan-J-B" }, { "family_name": "Yariv", "given_name": "A.", "clpid": "Yariv-A" } ], "abstract": "Gratings with variable periods (chirped gratings) have been fabricated by recording the interference pattern of a collimated laser beam with a converging beam generated by a cylindrical lens. An analysis is presented for the behavior of the chirped gratings as a function of wavelength, the angle between the illuminating beams, the F number of the lens, and its position. To calculate the power radiated into air, the coupled-mode equations are solved for the case of a waveguide with chirped surface corrugation. Experimentally, chirped gratings have been etched on the surface of an optical waveguide and used to couple light out of the waveguide. It was found that the light was focused outside the waveguide, and the fraction of the power radiated into air compared favorably with the theoretical calculation. The focal point outside the waveguide was found to move by about 1 cm when the wavelength was changed by 500 \u00c5-in agreement with theoretical estimates.", "issn": "0018-9197", "publisher": "IEEE Journal of Quantum Electronics", "publication": "IEEE Journal of Quantum Electronics", "publication_date": "1977-04-01", "series_number": "4", "volume": "13", "issue": "4", "pages": "296-304" } ]