Square-wave switching by crossed-polarization gain modulation in vertical-cavity semiconductor lasers
نویسندگان
چکیده
منابع مشابه
Polarization switching control in vertical-cavity surface-emitting lasers
Orthogonal polarizations within vertical-cavity surface-emitting lasers ~VCSEL! lase at slightly different wavelengths. We describe the use of optical feedback to confine polarization variations to reproducible injection currents. An external cavity is used to select specific wavelengths that reflect back into the VCSEL, hence, changing the cavity Q for the different polarization states. With t...
متن کاملSquare-wave switching in vertical-cavity surface-emitting lasers with polarization-rotated optical feedback: Experiments and simulations
David W. Sukow,1 Taylor Gilfillan,1 Brenton Pope,1 Maria S. Torre,2 Athanasios Gavrielides,3 and Cristina Masoller4 1Department of Physics and Engineering, Washington and Lee University, Lexington, Virginia 24450, USA 2Instituto de Fı́sica ‘Arroyo Seco’, UNCPBA, Pinto 399 (7000) Tandil, Argentina 3Air Force Research Laboratory AFRL/EOARD, 86 Blenheim Crescent, Ruislip Middlesex HA4 7HB, United K...
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Surface-emitting semiconductor lasers can make use of external cavities and optical pumping techniques to achieve a combination of high continuous-wave output power and near-diffraction-limited beam quality that is not matched by any other type of semiconductor source. The ready access to the laser mode that the external cavity provides has been exploited for applications such as intra-cavity f...
متن کاملFast, electrically controlled polarization modulation of multimode vertical-cavity surface-emitting lasers by RF frequency modulation.
We report on a study of polarization properties of asymmetric, multimode vertical-cavity surface-emitting lasers (VCSEL) subjected to electrical RF modulation. When subjected to RF modulation, complex frequency-dependent polarization properties, especially near the polarization switching point are revealed. We propose a scheme of rapidly switching the two RF frequencies modulating the VCSEL, in...
متن کاملNumerical Modeling of Vertical Cavity Semiconductor Lasers
A vertical cavity surface emitting laser (VCSEL) is a diode laser whose optical cavity is formed by growing or depositing DBR mirror stacks that sandwich an active gain region. The resulting short cavity supports lasing into a single longitudinal mode normal to the wafer, making these devices ideal for a multitude of applications, ranging fiom high-speed communication to high-power sources (fro...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2007
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.76.043801