Gain characteristics of strained quantum well lasers
InGaAs/AlGaAs laser diode arrays fabricated with differing amounts of In in the quantum well active layer are characterized by threshold currents of 115 A/cm2, transparency currents of 50 A/cm2, optic...
InGaAs/AlGaAs laser diode arrays fabricated with differing amounts of In in the quantum well active layer are characterized by threshold currents of 115 A/cm2, transparency currents of 50 A/cm2, optic...
Demonstration of a grating-surface-emitting diode laser with low-threshold current density
This letter reports the demonstration of grating-surface-emitting (GSE) lasers with threshold current densities as low as 440 A/cm2. When the distributed-Bragg-reflector sections were cleaved from the...
This letter reports the demonstration of grating-surface-emitting (GSE) lasers with threshold current densities as low as 440 A/cm2. When the distributed-Bragg-reflector sections were cleaved from the...
Fabrication of channel waveguides in polydiacetylenes: Composite diffused glass/polymer structures
Appl. Phys. Lett. 56, 13 (1990); doi:10.1063/1.102648
Issue Date: 1 January 1990
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We report the fabrication of single-mode channel waveguides in spun films of polydiacetylenes using an inverted rib design. These robust guides consist of a planar layer of the polydiacetylene spun on a glass substrate in which high-index channels have been defined by ion exchange. Models of such guides show that most of the optical field of the guided wave is confined to the polymer layer, with the high-index glass channels providing lateral confinement. End-fire coupling of 1.06, 1.15, 1.32, and 1.55 µm light into the composite guides resulted in single-mode guiding with the light confined to the polymer layer. This approach to waveguide formation should be applicable to a wide range of polymeric materials.
Applied Physics Letters is copyrighted by The American Institute of Physics.
| History: | Received 3 July 1989; accepted 23 October 1989 |
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http://link.aip.org/link/?APPLAB/56/13/1 |
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del.icio.us
BibSonomy
KEYWORDS and PACS
FABRICATION,
WAVEGUIDES,
POLYMERS,
GLASS,
POLYACETYLENES,
OPTICAL PROPERTIES,
INFRARED RADIATION,
USES
- 42.80.Lt
Optics Optical devices, techniques, and applications Optical waveguides and couplers (non-fiber-optical) - 42.82.+n
Optics Integrated optics - 78.65.Hc
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of thin films, surfaces, and thin layer structures (including superlattices, heterostructures, and intercalation compounds) Organics and polymers - YEAR: 1990
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
AIP
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