Matches in SemOpenAlex for { <https://semopenalex.org/work/W341918744> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W341918744 abstract "An outline is given of the basic parameters which control the operation and life expectancy of cw laser diodes. This includes a different approach to the laser design problem than that generally used and leads to a modified expression for the threshold current density. Results of this analysis are used to develop a cw laser structure that combines a low threshold with a low vertical beam spread, the latter being essential to the achievement of low coupling losses needed in fiber-optic communication systems. Other design requirements are reviewed, and electrical and optical performance data of lasers developed under this contract are presented. Based on extensive experimental measurements, the reliability aspects of cw lasers are discussed. Facet erosion is shown to be a major failure mode, and methods are given for limiting the influence of this effect. With a suitable coating applied to the facet, lasers fabricated during this contract have accumulated 6000 hours of life without significant output decrease. Similar lasers, without facet protection, have accumulated more than 10,000 hours of operating time with output decreasing gradually, as a consequence of facet erosion. A laser system has been developed, which includes thermal stabilization utilizing thermoelectric coolers and fan coooling for more » heat removal from the hot end of the thermoelectric module. Convection cooling for that purpose has been demonstrated to be adequate under less extreme ambients. « less" @default.
- W341918744 created "2016-06-24" @default.
- W341918744 creator A5005147542 @default.
- W341918744 creator A5007418544 @default.
- W341918744 creator A5037555230 @default.
- W341918744 date "1975-10-01" @default.
- W341918744 modified "2023-09-27" @default.
- W341918744 title "Injection lasers for high data rate optical communications. Volume II. Final report 1 Jan-30 Sep 1975" @default.
- W341918744 hasPublicationYear "1975" @default.
- W341918744 type Work @default.
- W341918744 sameAs 341918744 @default.
- W341918744 citedByCount "0" @default.
- W341918744 crossrefType "journal-article" @default.
- W341918744 hasAuthorship W341918744A5005147542 @default.
- W341918744 hasAuthorship W341918744A5007418544 @default.
- W341918744 hasAuthorship W341918744A5037555230 @default.
- W341918744 hasConcept C120665830 @default.
- W341918744 hasConcept C121332964 @default.
- W341918744 hasConcept C121477167 @default.
- W341918744 hasConcept C128458982 @default.
- W341918744 hasConcept C15744967 @default.
- W341918744 hasConcept C159985019 @default.
- W341918744 hasConcept C163258240 @default.
- W341918744 hasConcept C187288502 @default.
- W341918744 hasConcept C192562407 @default.
- W341918744 hasConcept C20556612 @default.
- W341918744 hasConcept C2781448156 @default.
- W341918744 hasConcept C2865642 @default.
- W341918744 hasConcept C43122875 @default.
- W341918744 hasConcept C43214815 @default.
- W341918744 hasConcept C49040817 @default.
- W341918744 hasConcept C520434653 @default.
- W341918744 hasConcept C62520636 @default.
- W341918744 hasConcept C63024428 @default.
- W341918744 hasConcept C77805123 @default.
- W341918744 hasConcept C78434282 @default.
- W341918744 hasConcept C97355855 @default.
- W341918744 hasConceptScore W341918744C120665830 @default.
- W341918744 hasConceptScore W341918744C121332964 @default.
- W341918744 hasConceptScore W341918744C121477167 @default.
- W341918744 hasConceptScore W341918744C128458982 @default.
- W341918744 hasConceptScore W341918744C15744967 @default.
- W341918744 hasConceptScore W341918744C159985019 @default.
- W341918744 hasConceptScore W341918744C163258240 @default.
- W341918744 hasConceptScore W341918744C187288502 @default.
- W341918744 hasConceptScore W341918744C192562407 @default.
- W341918744 hasConceptScore W341918744C20556612 @default.
- W341918744 hasConceptScore W341918744C2781448156 @default.
- W341918744 hasConceptScore W341918744C2865642 @default.
- W341918744 hasConceptScore W341918744C43122875 @default.
- W341918744 hasConceptScore W341918744C43214815 @default.
- W341918744 hasConceptScore W341918744C49040817 @default.
- W341918744 hasConceptScore W341918744C520434653 @default.
- W341918744 hasConceptScore W341918744C62520636 @default.
- W341918744 hasConceptScore W341918744C63024428 @default.
- W341918744 hasConceptScore W341918744C77805123 @default.
- W341918744 hasConceptScore W341918744C78434282 @default.
- W341918744 hasConceptScore W341918744C97355855 @default.
- W341918744 hasLocation W3419187441 @default.
- W341918744 hasOpenAccess W341918744 @default.
- W341918744 hasPrimaryLocation W3419187441 @default.
- W341918744 hasRelatedWork W1491630077 @default.
- W341918744 hasRelatedWork W1641083688 @default.
- W341918744 hasRelatedWork W1936819505 @default.
- W341918744 hasRelatedWork W1972607383 @default.
- W341918744 hasRelatedWork W1986881343 @default.
- W341918744 hasRelatedWork W1987271619 @default.
- W341918744 hasRelatedWork W1989137791 @default.
- W341918744 hasRelatedWork W1998597341 @default.
- W341918744 hasRelatedWork W1999569765 @default.
- W341918744 hasRelatedWork W2024880849 @default.
- W341918744 hasRelatedWork W2034670906 @default.
- W341918744 hasRelatedWork W2047201884 @default.
- W341918744 hasRelatedWork W2073306731 @default.
- W341918744 hasRelatedWork W2079450170 @default.
- W341918744 hasRelatedWork W2097784991 @default.
- W341918744 hasRelatedWork W2151445145 @default.
- W341918744 hasRelatedWork W2288999851 @default.
- W341918744 hasRelatedWork W2766552137 @default.
- W341918744 hasRelatedWork W3134384238 @default.
- W341918744 hasRelatedWork W1963220022 @default.
- W341918744 isParatext "false" @default.
- W341918744 isRetracted "false" @default.
- W341918744 magId "341918744" @default.
- W341918744 workType "article" @default.