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Title: Low-cost laser diode array

Abstract

A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost.

Inventors:
 [1];  [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872318
Patent Number(s):
5909458
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
low-cost; laser; diode; array; substrate; fabricate; machined; electrically; insulative; material; thermally; conductive; substrates; bonded; top; thickness; slightly; cavity; length; width; groove; wide; contain; bar; spring; secures; firmly; provides; electrical; continuity; backside; adjacent; metalization; layer; arrays; containing; bars; formed; creating; grooves; various; spacings; adjoined; edges; provide; parallel; conduction; architecture; allows; precise; predictable; registration; self-aligned; microlens; cost; adjacent metal; laser bar; electrical continuity; provides electrical; substrate thickness; electrically insulative; laser diode; diode array; thermally conductive; cavity length; electrical conduction; insulative material; low-cost laser; laser bars; lens array; /372/

Citation Formats

Freitas, Barry L., and Skidmore, Jay A. Low-cost laser diode array. United States: N. p., 1999. Web.
Freitas, Barry L., & Skidmore, Jay A. Low-cost laser diode array. United States.
Freitas, Barry L., and Skidmore, Jay A. Fri . "Low-cost laser diode array". United States. https://www.osti.gov/servlets/purl/872318.
@article{osti_872318,
title = {Low-cost laser diode array},
author = {Freitas, Barry L. and Skidmore, Jay A.},
abstractNote = {A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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