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1990 Fiscal Year Final Research Report Summary

Development of Novel Distributed Feedback Semiconductor Lasers with Reflection Insensitivity and Very Low Chirping Property

Research Project

Project/Area Number 01850014
Research Category

Grant-in-Aid for Developmental Scientific Research (B).

Allocation TypeSingle-year Grants
Research Field 物理計測・光学
Research InstitutionUniversity of Tokyo

Principal Investigator

TADA Kunio  Univ. of Tokyo, Faculty of Engineering, Professor, 工学部, 教授 (00010710)

Co-Investigator(Kenkyū-buntansha) IWAOKA Hideto  Optical Measurement Technology Developments Co., Ltd. Central Research Laborator, 中央研究所, 主任研究員
MOTOSUGI Tsuneharu  NTT Telecommunication Networks Laboratories Senior Research Engineer, Supervisor, 主幹研究員
MURAI Tohru  Univ. of Tokyo, Faculty of Engineering, Assistant, 工学部, 助手 (60107571)
NAKANO Yoshiaki  Univ. of Tokyo, Faculty of Engineering, Lecturer, 工学部, 講師 (50183885)
Project Period (FY) 1989 – 1990
KeywordsSemiconductor laser / Distributed feedback laser / DFB laser / Gain coupling / Stripe width modulation / Integrated photonic device / Reflection / Chirping
Research Abstract

1. Purely Gain-Coupled Distributed Feedback (DFB) Laser A novel DFB laser structure has been proposed, where pure gain coupling without index coupling is in principle brought about. We realized it by utilizing a special growth kinetics of organo-metallic vapor phase epitaxy, and achieved room-temperature continuous-wave operation with very low threshold current of 17mA. We have also showed theoretically and experimentally that, in the gain-coupled DFB laser, the oscillation mode is uniquely defined irrespective of facet phases, and there fore that very high single mode yield is obtainable even with as-cleaved end facets.
2. External Reflection Insensitivity in Gain-Coupled DFB Lasers Dependence of intensity noise on external reflection of the above laser has been measured and compared with that of the conventional DFB laser. If the amount of reflection was less than 1%, the excess noise induced by the reflection was 10-20dB less in the case of remote reflection, and virtually no increas … More e in noise was observed in the case of adjacent reflection.
3. Ultralow Chirping, Single Mode Optical Short Pulse Generation in Gain-Coupled DFB Lasers We have tried gain-switching short optical pulse generation experiment in the above laser using electrical pulses, and obtained an optical pulse of 16ps FWHM. Time-averaged spectra of the optical pulse have been measured and surprisingly found to be of single mode with 0.12nm FWHM. The linewidth enhancement factor estimated from these values is as small as 1.6.
4. Low Chirping DFB Lasers with Distributed Electrode and Modulated Stripe Width Structures It has been shown through numerical simulation that, by using the above structures proposed here, the oscillation wavelength shift resulting from the longitudinal spatial hole burning can completely be eliminated, and that the chirping accompanying the relaxation oscillation can considerably be reduced.
5. Monolithic Integration of a DFB Laser and a Modulator / Amplifier for Low Chirping Operation An alternative approach to realize low chirping modulation has been tried by integrating a traveling wave optical amplifier / modulator. We pointed out the usefulness of angled facets formed by reactive ion etching for reduction of optical cross-talk. The fabricated integrated device exhibited performances good enough for practical use, such as 20mA threshold and 10dB optical gain. Less

  • Research Products

    (42 results)

All Other

All Publications (42 results)

  • [Publications] Yi LUo: "Gainーcoupled DFB semiconductor laser having corrugated active layer" Technical Digest,Seventh International Conference on Integrated Optics and Optical Fiber Communication(100C'89),Kobe. 5. 40-41 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Some novel techniques for the fabrication of semiconductor diffraction gratings" Technical Digest,First International Meeting on Advanced Processing and Characterization Technologies(APCT'89),Tokyo. 1. 81-84 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Novel structure for semiconductor distributed feedback lasers ーformation of a corrugated active layer utilizing OMVPE" Technical Digest,First International Meeting on Advanced Processing and Characterization Technologies(APCT'89),Tokyo. 1. 223-226 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Facet reflection independent,single longitudinal mode oscillation in a GaAlAs/GaAs distributed feedback laser equipped with a gainーcoupling mechanism" Applied Physics Letters. 55. 1606-1608 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中野 義昭: "GaAs系分布帰還型半導体レ-ザ-とその縦モ-ド制御(総合報告)" 応用物理. 58(11). 1554-1573 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中野 義昭: "発振波長安定化分布帰還型半導体レ-ザ" 東京大学工学部紀要(A). 27. 34-35 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takuya ISHIKAWA: "Application of modern control theory to temperature control of the MBE system" Japanese Journal of Applied Physics. 29(3). 613-620 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Purely gainーcoupled distributed feedback semiconductor lasers" Applied Physics Letters. 56(17). 1620-1622 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Short wavelength distributed feedback laser diode as a light source in optical computing" Optical Computing in Japan,ed.S.Ishihara,Nova Science Publishers,Inc.,New York. 393-405 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Fabrication of an integrated DFB laser/amplifier with reactiveーionーetched tilted facets for reduction of optical crosstalk" Extended Abstracts of the 22nd(1990 International) Conference on Solid State Devices and Materials,Sendai. 22. 557-560 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Low threshold cw operation in a novel gainーcoupled distributed feedback semiconductor laser" Conference Digest,12th IEEE International Semiconductor Laser Conference,Davos,Switzerland. 12. 70-71 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Resistance to external optical feedback in a gainーcoupled semiconductor DFB laser" Conference Digest,12th IEEE International Semiconductor Laser Conference,Davos,Switzerland. 12. 72-73 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Fabrication and characteristics of an integrated DFB laser/amplifier having reactiveーionーetched tilted end facets" Japanese Journal of Applied Physics. 29(12). L2430-L2433 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "(Invited Paper)Laser diodes with gainーcoupled distributed optical feedback" to appear in Proceedings of SPIE,Laser Diode Technology and Applications III. 1418. (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Reduction of excess intensity noise induced by external reflection in a gainーcoupled distributed feedback semiconductor laser" to appear in IEEE Journal of Quantum Electronics. 27(6). (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Fabrication and characteristics of gainーcoupled distributed feedback semiconductor lasers with a corrugated active layer" to appear in IEEE Journal of Quantum Electronics. 27(6). (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Junーichi HASHIMOTO: "Influence of facet reflection on the performance of a DFB laser integrated with an optical amplifier/modulator" submitted to IEEE Journal of Quantum Electronics.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Ultralow chirping short optical pulse(16ps)generation in gainーcoupled distributed feedback semiconductor lasers" submitted to Applied Physics Letters.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Short pulse single mode operation of gainーcoupled distributed feedback semiconductor lasers" submitted to 11th Conference on Lasers and ElectroーOptics(CLEO'91)Baltimore,May 1991.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yi LUO: "Fabrication of GaAlAs/GaAs single quantum well gainーcoupled distributed feedback lasers" submitted to 2nd International Meeting on Advanced Processing and Characterization Technologies(APCT'91),Clearwater Beach,May 1991.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki NAKANO: "Highly efficient single longitudinal mode oscillation capability of gainーcoupled distributed feedback semiconductor lasers ーadvantage of asymmetric facet coating" in preparation for submission to IEEE Photonics Technology Letters.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] YiLuo, Yoshiaki Nakano, Kunio Tada, Takeshi Inoue, Heruo Hosomatsu, and Hideto Iwaoka: ""Gain-coupled DFB semiconductor laser having corrugated active layer"" Technical Digest, Seventh International Conference on Integrated Optics and Optical Fiber Communication (100C '89), Kobe. vol. 5. 40-41 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano and Kunio Tada: ""Some novel techniques for the fabrication of semiconductor diffraction gratings"" Technical Digest, First International Meeting on Advanced Processing and Characterization Technologies (APCT' 89), Tokyo. vol. 1. 81-84 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Yoshiaki Nakano, Kunio Tada, Takeshi Inoue, Haruo Hosomatsu, and Hideto Iwaoka: ""Novel structure for semiconductor distributed feedback lasers -formation of a corrugated active layer utilizing OMVPE"" Technical Digest, First International Meeting on Advanced Processing and Characterization Technologies (APCT '89), Tokyo. vol. 1. 223-226 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, YiLuo, and Kunio Tada: ""Facet refiection indeppendent, single longitudinal mode oscillation in a SaAlAs/GaAs distributed feed back laser equipped with a gain-coupling mechanism"" Applied Physics Letters. vol. 55, no. 16. 1606-1608 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano and Kunio Tada: ""GaAs-based distributed feedback semiconductor lasers and their longitudinal mode control"" Oyo Buturi. vol. 58, no, 11. 1554-1573 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano and Kunio Tada: ""Oscillation wavelength stabilized distributed feedback semiconductor lasers"" Journal of Faculty of Engineering, University of Tokyo. vol. A-27. 34-35 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takuya Ishikawa, Yuen-Chuen Chan, Yoshiaki Nakano, and Kunio Tada: ""Application of modern control theory to temperature control of the MBE system"" Japanese Journal of Applied Physics. vol. 29, no. 3. 613-620 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Yoshiaki Nakano, Kunio Tada, Takeshi Inoue, Haruo Hosomatsu, and Hideto Iwaoka: ""Purely gain-coupled distributed feedback semiconductor lasers"" Applied Physics Letters. vol. 56, no. 17. 1620-1622 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano and Kunio Tada: ""Short wavelength distributed feedback laser diode as a light source in optical computing"" Optical Computing in Japan, ed. S. Ishihara, Nova Science Publishers, Inc., New York. 393-405 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, Yoichi Hayashi, Yasuyuki Sakaguchi, and Kunio Tada: ""Fabrication of an integrated DFB Laser/amplifier with reactive-ion-etched tilted facets for reduction of optical cross talk"" Extended Abstracts of the 22nd (1990 International) Conference on Solid State Devices and Materials, Sendai. 557-560 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Yoshiaki Nakano, lei Lkeda, Kunio Tada, Takeshi Inoue, Haruo Hosomatsu, and Hideto Iwaoka: ""Low threshold cw operation in a novel gain-coupled distributed feedback semiconductor laser"" Conference Digest, 12th IEEE International Semiconductor Laser Conference, Davos. 70-71 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, Yoshitaka Deguchi, Kei Ikeda, YiLuo, and K. Tada: ""Resistance to external optical feedback in a gain-coupled semiconductor DFB laser"" Conference Digest, 12th IEEE International Semiconductor Laser Conference, Davos. 72-73 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, Yohichi Hayashi, Nong Chen, Yasuyuki Sakaguchi, and Kunio Tada: ""Fabrication and characteristics of an integrated DFB laser/amplifier having reactive-ion-etched tilted end facets"" Japanese Journal of Applied Physics. vol. 29, no. 12. L2430-L2433 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, YiLuo, and Kunio Tada: ""Laser diodes with gain-coupled distributed optical feedback"" Proceedings of SPIE, Laser Diode Technology and Applications III. vol. 1418. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, Yoshitaka Deguchi, Kei Ikeda, YiLuo, and Kunio Tada: ""Reduction of excess intensity noise induced by external reflection in a gain-coupled distributed feedback semiconductor laser"" IEEE Journal of Quantum Electronics. vol. 27, no. 6. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Yoshiaki Nakano, Kunio Tada, Takeshi Inoue, Haruo Hosomatsu, and Hideto Iwaoka: ""Fabrication and characteristics of gain-coupled distributed feedback semiconductor lasers with a corrugated active layer"" IEEE Journal of Quantum Electronics. vol. 27, no. 6. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jun-ichiHashimoto, Yoshiaki Nakano, and Kunio Tada: ""Influence of facet reflection on the performance of a DFB laser integrated with an optical amplifier/modulator"" IEEE Journal of Quantum Electronics.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Ryo Takahashi, Yoshiaki Nakano, Kunio Taka, Takeshi Kamiya, Haruo Hosomatsu, and Hideto Iwaoka: ""Ultralow chirping short optical pulse (16ps) generation in gain-coupled distributed feedback semiconductor lasers"" Applied Physics Letters.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Ryo Takhashi, Yoshiaki Nakano, Kunio Tada, Takeshi Kamiya, Haruo Hosomatsu, and Hideto Iwaoka: ""Short pulse single mode operation of gain-coupled distributed feedback semiconductor lasers"" 11th Conference on Lasers and Electro-Optics (CLEO '91), Baltimore, May 1991.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] YiLuo, Hong-Li Cao, Machio Dobashi, Haruo Hosomatsu, Yoshiaki Nakano, and Kunio Tada: ""Fabrication of GaAlAs/GaAS single quantum well gain-coupled distributed feedback lasers"" 2nd International Meeting on Advanced Processing and Characterization Technologies (APCT '91), Clearwater Beach, May 1991.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Nakano, Yuuichi Uchida, and Kunio Tada: ""Highly efficient single longitudinal mode oscillation capability of gain-coupled distributed feedback semiconductor lasers -advantage of asymmetric facet coating"" IEEE Photonics Technology Letters.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-08-12  

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