Browse Prior Art Database

Linear Laser Array

IP.com Disclosure Number: IPCOM000093394D
Original Publication Date: 1967-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Craig, RM: AUTHOR [+2]

Abstract

Drawing A shows an exploded view of a linear laser array. The latter consists of solid pressure contact 10 held in place by screws 12, laser diode array 14, laminated contact 16, contactor strip 18, and frame 20. Strip 18 connects to socket strip 22. An exploded view is shown in drawing B.

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Linear Laser Array

Drawing A shows an exploded view of a linear laser array. The latter consists of solid pressure contact 10 held in place by screws 12, laser diode array 14, laminated contact 16, contactor strip 18, and frame 20. Strip 18 connects to socket strip 22. An exploded view is shown in drawing B.

Array 14 consists of a single cleaved laser diode bar in which slots 24 are made through the laser junction, thus isolating the bar into many adjacent individual diodes connected together electrically on one contacting surface 32. Each slot 24 is made with a string saw such that the slot width is 0.4 millinch and the individual diode center-to-center spacing is 2 2/3 mils. The dimension along the slot is 12 mils. There are thirty-two elements, individual diodes. Contact is made to the common side by pressure contact 10. Contact is made to the slotted side of array 14 by laminated contact 16.

Contact 16 consists of copper strips 30 and plastic film insulators 28 bonded together with epoxy. Strips 30 are 2.0 mils in thickness and the insulator is 0.5 mil in thickness. The device produces resultant thresholds within 10% of 12 amps for each diode at room temperature. In this type of array, each diode can be electrically driven individually, thus providing for beam scanning, addressing a memory, or providing power. This array can also operate at liquid nitrogen temperatures.

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