JPH0756552B2 - 波長変換素子 - Google Patents

波長変換素子

Info

Publication number
JPH0756552B2
JPH0756552B2 JP27242684A JP27242684A JPH0756552B2 JP H0756552 B2 JPH0756552 B2 JP H0756552B2 JP 27242684 A JP27242684 A JP 27242684A JP 27242684 A JP27242684 A JP 27242684A JP H0756552 B2 JPH0756552 B2 JP H0756552B2
Authority
JP
Japan
Prior art keywords
light
light emitting
wavelength conversion
phototransistor
conversion element
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.)
Expired - Lifetime
Application number
JP27242684A
Other languages
English (en)
Other versions
JPS61150285A (ja
Inventor
健一 笠原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP27242684A priority Critical patent/JPH0756552B2/ja
Publication of JPS61150285A publication Critical patent/JPS61150285A/ja
Publication of JPH0756552B2 publication Critical patent/JPH0756552B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/12Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H01L31/14Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices
    • H01L31/147Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers
    • H01L31/153Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers formed in, or on, a common substrate
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/12Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H01L31/125Composite devices with photosensitive elements and electroluminescent elements within one single body
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/02Structural details or components not essential to laser action
    • H01S5/026Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
    • H01S5/0262Photo-diodes, e.g. transceiver devices, bidirectional devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0608Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
    • H01S5/0609Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors
    • H01S5/0611Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors wavelength convertors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06203Transistor-type lasers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/10Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/18Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
    • H01S5/183Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
    • H01S5/18302Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] comprising an integrated optical modulator
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/50Amplifier structures not provided for in groups H01S5/02 - H01S5/30

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は光信号処理や光情報処理システム等に於いて用
いられる波長変換素子に関する。
(従来技術とその問題点) 光の波長を別の異なる波長に変換する機能素子は、光交
換や光コンピュータといった高度な光応用システムや多
機能機器を実現する上で欠くことのできないデバイスで
ある。波長変換機能を実現するには従来、光信号を受光
素子で受け、、一度、電気信号に変えた後で再び発光素
子を駆動されることによって行なわれる。この方法では
一枚のウェハ上にモノリシック集積するには、発光・受
光素子や電子回路といった互いに異なる構造や形態を持
った素子を同時に形成することになるので製作が難し
い。又、一素子当りの部品点数も多く、素子面積も大き
くなるので実装密度が減少する。
(発明の目的) 本発明は上記欠点に鑑みなされたものであり、小型でア
レイ化に適した光利得を有する波長変換素子を提供する
ことを目的とする。
(発明の構成) 上記目的を達成するために、本発明は、面発光素子とフ
ォトトランジスタとからなる積層構造を備え、更に、前
記面発光素子の活性域のエネルギー禁制帯幅を前記フォ
トトランジスタのベースのエネルギー禁制帯幅よりも大
きくしたものである。
(本発明の作用・原理) 本発明ではフォトトランジスタ側に光が照射されるとそ
れに伴ない直列に接続された発光素子に電流が流れ発光
する。電圧は発光素子、フォトトランジスタ間に正の電
圧をかけておくものとする。フォトトランジスタのベー
ス禁制帯波長が発光素子の活性層の禁制帯波長より大き
くなるようにすると入射光と出射光の波長を変えること
ができる。フォトトランジスタと発光素子とは層厚方向
に一体化し、近接して形成されているので発光の一部は
フォトトランジスタのベース領域に吸収され、効率良く
正帰還がかかる。その結果入射光と出射光との間に微分
利得特性が生じ、その状態で使うと高い光利得が得られ
る。
(実施例) 第1図は本発明に係わる一実施例である。同図に於い
て、11はn−InPから成る半導体基板、12は同じn−InP
(n=5×1017cm-3、d=1μm)から成るエミッタ
層、13はP−InGaAsP(λg=1.3μm、P=2×1018cm
-3、d=0.1μm)から成るベース層、14はn−InP(n
=5×1017cm-3、d=1μm)から成るコレクタ層、15
はこれもn−InP(n=2×1018cm-3、d=0.5μm)か
ら成るnクラッド層、16はアンドープInGaAsP(λg=
1.2μm、d=0.5μm)から成る活性層、17はp−InP
(p=2×1018、d=0.5μm)から成るpクラッド
層、20はp−InGaAsP(λg=1.15μm、P=1×1019c
m-3、d=0.2μm)から成るコンタクト層、19はZnの拡
散領域、18l,182,183及び184は電極である。第1図では
λ1.3μm、λ1.2μmであり、波長λの光が
波長λの光に変換される。発光量のうち50%がフォト
トランジスタ側に帰還される。第2図は微分利得特性を
示したものである。光利得が急激に大きくなり飽和する
入射光量Isはベースの広がり抵抗によるベース電位の低
下が無視できなくなる点で決まる。エミッタ領域の大き
さは40μmφである。微分利得を示す状態で使用した場
合の光利得として約10dBの光利得が得られる。上記実施
例では発光素子として発光ダイオードを用いたが、面発
光型であれば他の素子、例えば半導体レーザであっても
よい。また、上記実施例で示したものを複数個並設し、
各フォトダイオード、発光素子のEgを異ならしめること
により種々の波長変換ができる。
(発明の効果) 以上のように本発明ではフォトダイオードと発光素子と
で積層構造を形成しているためコンパクトで作り易く集
積化に適した光利得を有する波長変換素子が得られる。
【図面の簡単な説明】
第1図は本発明に係わる一実施例を示す図、第2図は入
射光強度と出射光強度の関係を示す図である。11は半導
体基板、12はエミッタ層、13はベース層、14はコレクタ
層、15はnクラッド層、16は活性層、17はpクラッド
層、20はコンタクト層、19は拡散領域、181,182,183及
び184は電極である。

Claims (1)

    【特許請求の範囲】
  1. 【請求項1】面発光素子とフォトトランジスタとからな
    る積層構造を備え、更に、前記面発光素子の活性域のエ
    ネルギー禁制帯幅が前記フォトトランジスタのベースの
    エネルギー禁制帯幅よりも大きいことを特徴とする波長
    変換素子。
JP27242684A 1984-12-24 1984-12-24 波長変換素子 Expired - Lifetime JPH0756552B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27242684A JPH0756552B2 (ja) 1984-12-24 1984-12-24 波長変換素子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27242684A JPH0756552B2 (ja) 1984-12-24 1984-12-24 波長変換素子

Publications (2)

Publication Number Publication Date
JPS61150285A JPS61150285A (ja) 1986-07-08
JPH0756552B2 true JPH0756552B2 (ja) 1995-06-14

Family

ID=17513743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27242684A Expired - Lifetime JPH0756552B2 (ja) 1984-12-24 1984-12-24 波長変換素子

Country Status (1)

Country Link
JP (1) JPH0756552B2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667207B1 (fr) * 1990-09-21 1993-06-25 Thomson Csf Convertisseur de frequences lumineuses.
JP3726398B2 (ja) * 1997-02-14 2005-12-14 富士ゼロックス株式会社 半導体装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59977A (ja) * 1982-06-25 1984-01-06 Sumitomo Electric Ind Ltd 双方向波長変換素子

Also Published As

Publication number Publication date
JPS61150285A (ja) 1986-07-08

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