40 GHz Actively Mode-Locked Distributed Bragg Reflector Laser Diode Module with an Impedance-Matching Circuit for Efficient RF Signal Injection

• Arahira Shin

  Advanced Devices Laboratories, Oki Electric Industry Co., Ltd.

• Ogawa Yoh

  Advanced Devices Laboratories, Oki Electric Industry Co., Ltd.

Abstract

A 40 GHz actively mode-locked laser diode integrated with an electroabsorption modulator as a mode locker was developed. The laser was packaged in a module together with an impedance-matching circuit of double open stubs for efficient RF signal injection. A 13 dB improvement of the RF injection efficiency was successfully achieved compared with a conventional 50 Ω terminated circuit. Nearly transform-limited, picosecond (<3 ps) pulses were successfully generated with a low timing jitter of 0.15 ps. A wide locking bandwidth over 1.9 GHz (39 GHz–40.9 GHz) was achieved while retaining small variation of pulse widths and low relative intensity noise values of less than −130 dB/Hz. Such a wide locking range could fully cover an error in cavity length in the cleaving process and is very promising for cost-effective device fabrication.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 43 (4B), 1960-1964, 2004

  The Japan Society of Applied Physics

Keywords

• laser diode
• mode locking
• optical short pulse generation
• optical communications
• impedance matching

Details

• CRID: 1390282681240316544
• NII Article ID: 10012949021
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.43.1960
• ISSN: 13474065
• ISSN: 00214922
• NDL BIB ID: 6939119
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6939119
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.1960
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.1960/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed