High-speed, optically controlled surface-normal optical switch based on diffusive conduction
We report a surface-normal optically controlled optoelectronic modulator made from a reversed biased p-i (multiple quantum well)-n GaAs/AlGaAs structure with ultrathin barriers (5 Å) whose recov...
We report a surface-normal optically controlled optoelectronic modulator made from a reversed biased p-i (multiple quantum well)-n GaAs/AlGaAs structure with ultrathin barriers (5 Å) whose recov...
Microwave near-field polarimetry
We report a near-field microwave scanning probe which allows local phase-sensitive polarimetric measurements with a subwavelength spatial resolution (at least /16). The probe is a symmetrical transmit...
We report a near-field microwave scanning probe which allows local phase-sensitive polarimetric measurements with a subwavelength spatial resolution (at least /16). The probe is a symmetrical transmit...
Multiple distributed feedback operation at 1.55 µm with uniform output powers in a single laser diode
Appl. Phys. Lett. 75, 600 (1999); doi:10.1063/1.124453
Issue Date: 2 August 1999
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We demonstrate in a single laser diode the simultaneous operation on different wavelengths around 1.55 µm while preserving the spectral distributed feedback selection mechanism for each wavelength. The grating that exists all along the cavity is a multiwavelength grating obtained by the linear transfer of superimposed multiple holographic exposures. Such a grating acts as a reflectivity comb, the action of each reflector being uniformly distributed all along the cavity. Thanks to a clever incorporation of a phase shift, the lasing wavelengths are deterministically placed on the Bragg modes. The equal strengths of the different spatial frequencies of the grating translate into uniform optical output powers on the simultaneous lasing modes. ©1999 American Institute of Physics.
| History: | Received 8 April 1999; accepted 7 June 1999 |
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http://link.aip.org/link/?APPLAB/75/600/1 |
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BibSonomy
KEYWORDS and PACS
semiconductor lasers,
distributed feedback lasers,
laser modes,
reflectivity,
laser cavity resonators,
diffraction gratings
- 42.55.Px
Optics Lasers Semiconductor lasers; laser diodes - 42.60.By
Optics Laser optical systems: design and operation Design of specific laser systems - 42.60.Da
Optics Laser optical systems: design and operation Resonators, cavities, amplifiers, arrays, and rings - 42.79.Dj
Optics Optical elements, devices, and systems Gratings - YEAR: 1999
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
AIP
REFERENCES (6)
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