熱補償型SSG-DBRレーザによる高速周波数掃引(超高速伝送・変復調・分散補償技術,超高速光信号処理技術,広帯域光増幅・WDM技術、受光デバイス,高光出力伝送技術,一般,(ECOC報告))  [in Japanese] Fast frequency sweep using SSG-DBR laser integrating thermal drift compensation mesa structure  [in Japanese]

Abstract

SSG-DBRレーザは電流注入・プラズマ効果型の高速波長可変レーザでナノ秒オーダの応答速度が得られる.したがって,WDM用波長パス切換え用光源はもとより,医科向けのOCT用高速波長掃引光源としても有望視されている.これまで,プラズマ効果型デバイスには電流注入によるジュール熱により素子温度が変動し,秒オーダの波長ずれを伴う課題があった.そこで我々は熱補償用のヒータ構造を集積し素子に投入する電力を正確に制御することで,発振周波数を6.25GHzステップで切換え,4個の波長帯SSG-DBRレーザの同時駆動により17.5THz (140nm)の広帯域にわたり波長ずれの無い周波数掃引を実現した.

SSG-DBR-LD is attractive for various applications in, for example, WDM systems and medical OCT systems, because of its fast and wide wavelength tuning characteristics. However, the tuning speed was actually limited to seconds by a thermal drift. In this work, we introduced a thermal drift compensator into SSG-DBR-LD, and suppressed the drift. We achieved an accurate and wide wavelength sweep of more than 140nm by synchronously driving four SSG-DBR-LDs.

Journal

Technical report of IEICE. OPE   [List of Volumes]

Technical report of IEICE. OPE 108(260), 149-152, 2008-10-16  [Table of Contents]

The Institute of Electronics, Information and Communication Engineers

References:  13

You must have a user ID to see the references.If you already have a user ID, please click "Login" to access the info.New users can click "Sign Up" to register for an user ID.

Preview

Preview

Codes

  • NII Article ID (NAID) :
    110007100698
  • NII NACSIS-CAT ID (NCID) :
    AN10442691
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    09135685
  • NDL Article ID :
    9705060
  • NDL Source Classification :
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL Call No. :
    Z16-940
  • Databases :
    CJP  NDL  NII-ELS