Locking range of a hybrid mode-locked monolithic DBR semiconductor laser at millimeter-wave frequencies

Dalma Novak, Dug Y. Kim, Hai Feng Liu, Zaheer Ahmed, Yoh Ogawa

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5 Citations (Scopus)


We present the first investigation of the detuning characteristics at 33 GHz of a hybrid mode-locked monolithic distributed Bragg reflector semiconductor laser. Hybrid mode-locking is achieved by applying a radio-frequency (rf) signal, at a frequency corresponding to the fundamental laser repetition frequency, to the saturable absorber of the passively mode-locked laser. Measurements show a 3-dB locking range greater than 40 MHz with an applied external rf signal power of 0 dBm. At this power level, the laser beat signal exhibited phase-noise less than -78 dBc/Hz and -93 dBc/Hz at 10 kHz and 5 MHz offsets, respectively.

Original languageEnglish
Pages (from-to)320-322
Number of pages3
JournalIEEE Microwave and Guided Wave Letters
Issue number9
Publication statusPublished - 1996 Sep 1


All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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