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JPH03116121A - Optical logic arithmetic unit - Google Patents

Optical logic arithmetic unit

Info

Publication number
JPH03116121A
JPH03116121A JP25645189A JP25645189A JPH03116121A JP H03116121 A JPH03116121 A JP H03116121A JP 25645189 A JP25645189 A JP 25645189A JP 25645189 A JP25645189 A JP 25645189A JP H03116121 A JPH03116121 A JP H03116121A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
optical
logic
arithmetic
laser
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP25645189A
Other versions
JP2733506B2 (en )
Inventor
Yukio Toyoda
Toru Tsuruta
Shinichi Wakabayashi
Original Assignee
Hikari Gijutsu Kenkyu Kaihatsu Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To obtain a threshold value characteristic which varies in the characteristics of a light output to a light input stepwise with a small input by providing an element, which includes a laser providing the attenuation effect of oscillation by flank injection as basic structure and has an optical logic arithmetic function, with an optical amplification area or semiconductor optical amplifier which is coupled with the element.
CONSTITUTION: The element which includes the laser 1 which provides the attenuation effect of oscillation by flank injection as the basic structure and also has the optical logic arithmetic function is equipped with the optical amplification area or semiconductor optical amplifier 2 which is coupled with the element. Namely, the laser 1 and an optical waveguide which is the active layer of the semiconductor optical amplifier 2 are arranged coaxially and input light P0 is made incident on the flank of the laser 1 at right angles to the optical waveguide as the active layer so as to perform optical logic arithmetic by the laser 1. Consequently, a phenomenon wherein the amplification factor is saturated when the input of the amplification area or amplifier 2 is increased is used to improve the stepwise threshold value characteristic of the output required for the optical logic arithmetic operation to the input, so that the optical logic arithmetic which does not generate malfunction becomes possible.
COPYRIGHT: (C)1991,JPO&Japio
JP25645189A 1989-09-29 1989-09-29 Optical logic unit Expired - Lifetime JP2733506B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25645189A JP2733506B2 (en) 1989-09-29 1989-09-29 Optical logic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25645189A JP2733506B2 (en) 1989-09-29 1989-09-29 Optical logic unit

Publications (2)

Publication Number Publication Date
JPH03116121A true true JPH03116121A (en) 1991-05-17
JP2733506B2 JP2733506B2 (en) 1998-03-30

Family

ID=17292833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25645189A Expired - Lifetime JP2733506B2 (en) 1989-09-29 1989-09-29 Optical logic unit

Country Status (1)

Country Link
JP (1) JP2733506B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7899100B2 (en) 2002-03-01 2011-03-01 Sharp Kabushiki Kaisha GaN laser element
US9066118B2 (en) 2004-07-30 2015-06-23 Broadband Itv, Inc. System and method for managing, converting and displaying video content on a video-on-demand platform, including ads used for drill-down navigation and consumer-generated classified ads
US9113228B2 (en) 2004-07-30 2015-08-18 Broadband Itv, Inc. Method of addressing on-demand TV program content on TV services platform of a digital TV services provider
KR20150102509A (en) * 2014-02-28 2015-09-07 이진성 Attached electric hot air device
US9635429B2 (en) 2004-07-30 2017-04-25 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9648390B2 (en) 2007-06-26 2017-05-09 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on view preferences for minimizing navigation in VOD program selection
US9936240B2 (en) 2017-04-28 2018-04-03 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7899100B2 (en) 2002-03-01 2011-03-01 Sharp Kabushiki Kaisha GaN laser element
US8170076B2 (en) 2002-03-01 2012-05-01 Sharp Kabushiki Kaisha GaN laser element
US8548019B2 (en) 2002-03-01 2013-10-01 Sharp Kabushiki Kaisha GaN laser element
US8824516B2 (en) 2002-03-01 2014-09-02 Sharp Kabushiki Kaisha GaN-based laser device
US9641896B2 (en) 2004-07-30 2017-05-02 Broadband Itv, Inc. Video-on-demand content delivery method for providing video-on-demand services to TV service subscribers
US9078016B2 (en) 2004-07-30 2015-07-07 Broadband Itv, Inc. System for adding or updating video content from internet sources to existing video-on-demand application of a digital TV services provider system
US9106959B2 (en) 2004-07-30 2015-08-11 Broadband Itv, Inc. Method for adding or updating video content from internet sources to existing video-on-demand application of digital TV services provider system
US9113228B2 (en) 2004-07-30 2015-08-18 Broadband Itv, Inc. Method of addressing on-demand TV program content on TV services platform of a digital TV services provider
US9888287B2 (en) 2004-07-30 2018-02-06 Broadband Itv, Inc. Video-on-demand content delivery system for providing video-on-demand services to TV services subscribers
US9635423B2 (en) 2004-07-30 2017-04-25 Broadband Itv, Inc. Video-on-demand content delivery method for providing video-on-demand services to TV services subscribers
US9635429B2 (en) 2004-07-30 2017-04-25 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9066118B2 (en) 2004-07-30 2015-06-23 Broadband Itv, Inc. System and method for managing, converting and displaying video content on a video-on-demand platform, including ads used for drill-down navigation and consumer-generated classified ads
US9648388B2 (en) 2004-07-30 2017-05-09 Broadband Itv, Inc. Video-on-demand content delivery system for providing video-on-demand services to TV services subscribers
US9635395B2 (en) 2004-07-30 2017-04-25 Broadband Itv, Inc. System for addressing on-demand TV program content on TV services platform of a digital TV services provider
US9648390B2 (en) 2007-06-26 2017-05-09 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on view preferences for minimizing navigation in VOD program selection
US9641902B2 (en) 2007-06-26 2017-05-02 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9654833B2 (en) 2007-06-26 2017-05-16 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9888288B2 (en) 2007-06-26 2018-02-06 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9894419B2 (en) 2007-06-26 2018-02-13 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
US9894417B2 (en) 2007-06-26 2018-02-13 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection
KR20150102509A (en) * 2014-02-28 2015-09-07 이진성 Attached electric hot air device
US9936240B2 (en) 2017-04-28 2018-04-03 Broadband Itv, Inc. Dynamic adjustment of electronic program guide displays based on viewer preferences for minimizing navigation in VOD program selection

Also Published As

Publication number Publication date Type
JP2733506B2 (en) 1998-03-30 grant

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