Analysis of the fast recovery dynamics of a semiconductor laser with feedback in the low-frequency fluctuation regime.

نویسندگان

  • S P Hegarty
  • G Huyet
  • P Porta
  • J G McInerney
چکیده

We experimentally investigate the temporal evolution of the power of an external cavity semiconductor laser in the low-frequency fluctuation regime with subnanosecond resolution. We show, for the first time to our knowledge, that generally the laser power drops to a value significantly different from the solitary laser power. We demonstrate the analogy between the recovery of the laser intensity and the turn-on transient of a semiconductor laser.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Theoretical comparison analysis of long and short external cavity semiconductor laser

In this paper, considering optical feedback as an optical injection, and taking in to account round-trip time role in the external cavity, a standard small signal analysis is applied on laser rate equations. By considering the relaxation oscillation (f2) and external cavity frequencies (f) ratio for semiconductor laser, field amplitude response gain, optical phase and carrier number for long ex...

متن کامل

Carrier dynamics in semiconductor lasers operating in the low-frequency fluctuation regime

We analyse the dynamics of a weakly index-guided semiconductor laser operating near threshold and with optical feedback, using the Lang–Kobayashi model. Lateral effects are included, taking into account lateral carrier diffusion and a lateral profile for the optical field. The laser intensity fluctuates in a sequence of picosecond pulses, and the time-averaged intensity shows sudden dropouts to...

متن کامل

Dynamics of modal power distribution in a multimode semiconductor laser with optical feedback

The dynamics of power distribution between longitudinal modes of a multimode semiconductor laser subjected to external optical feedback is experimentally analyzed in the low-frequency fluctuation regime. Power dropouts in the total light intensity are invariably accompanied by sudden activations of several longitudinal modes. These activations are seen not to be simultaneous to the dropouts, bu...

متن کامل

پیاده سازی مدولاتور الکترو اپتیکی دامنه در کاواک خارجی لیزر نیمرسانا برای تولید حالت‌های پریودیک و کنترل ناپایداری

In this paper, by placing the electro optical modulator (EOM) into the external cavity of the semiconductor laser (SL) and amplitude modulation of the optical feedback, the dynamical variation of the output intensity  of the laser has been studied. This is analyzed numerically via bifurcation and time series diagrams with respect to the applied amplitude modulation index, and modulation voltage...

متن کامل

Statistics of power-dropout events in semiconductor lasers with time-delayed optical feedback

We measure experimentally the statistical distribution of time intervals between power-dropout events occurring in a semiconductor laser with time-delayed optical feedback operating in the low-frequency fluctuation regime. Near the laser threshold, the time-interval probability distribution displays a low-probability region, or dead zone, for short times, followed by a slow rise, and an exponen...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Optics letters

دوره 23 15  شماره 

صفحات  -

تاریخ انتشار 1998