Journal ArticleDOI
Self-coupled phenomena of semiconductor lasers caused by an optical fiber
I. Ikushima,M. Maeda +1 more
TLDR
In this paper, the authors measured the output intensity noise spectra of semiconductor laser coupled to optical fibers with end-butt joints and found periodic peaks with a fundamental frequency decided only by the fiber length, which coincides with the reciprocal of the roundtrip time of the light beam in the optical fibers.Abstract:
Output intensity noise spectra of semiconductor lasers coupled to optical fibers with end-butt joints are measured to show periodic peaks with a fundamental frequency decided only by the fiber length. The frequency is found to coincide with the reciprocal of the roundtrip time of the light beam in the optical fibers.read more
Citations
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Journal ArticleDOI
External optical feedback effects on semiconductor injection laser properties
R. Lang,Kohroh Kobayashi +1 more
TL;DR: In this paper, the effects of external optical feedback on the semiconductor laser properties have been examined, i.e., return of a portion of the laser output from a reflector external to the laser cavity.
Journal ArticleDOI
External optical feedback phenomena in semiconductor lasers
TL;DR: In this paper, the authors reviewed the phenomena occurring in semiconductor lasers due to weak external optical feedback, including mode hopping and related mode-hopping noise, linewidth narrowing and broadening, and the transition to the coherence collapse regime.
Proceedings ArticleDOI
External optical feedback phenomena in semiconductor lasers
TL;DR: In this article, a good understanding of external optical feedback phenomena in semiconductor laser sources is provided, including linewidth narrowing and broadening, mode hopping phenomena and the transition to the so-called coherence-collapse regime.
Journal ArticleDOI
Microoptic grating multiplexers and optical isolators for fiber-optic communications
Kohroh Kobayashi,M. Seki +1 more
TL;DR: In this paper, Grating multiplexers and isolators for 0.8 μm band employing micro-optic approach have been developed for increasing further the utility of and to expand the application of fiberoptic communications.
Journal ArticleDOI
Oscillation center frequency tuning, quantum FM noise, and direct frequency characteristics in external grating loaded semiconductor lasers
TL;DR: In this paper, simple analytical expressions for the oscillation frequency, quantum FM noise spectrum, oscillation power spectrum, spectral linewidth, and direct optical frequency modulation efficiency in semiconductor lasers with external grating feedback are presented.
References
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Journal ArticleDOI
Channeled‐substrate planar structure (AlGa)As injection lasers
TL;DR: In this paper, a passive guiding mechanism is introduced by growing planar (AlGa)As/GaAs double-heterostructure (DH) layers on a grooved GaAs substrate.
Journal ArticleDOI
Microwave self-modulation of a diode laser coupled to an external cavity
TL;DR: An external cavity coupled to a conventional Fabry-Perot GaAs diode laser operating continuously has been found to cause modulation of the light output at a frequency within the range 05 to several GHz.
Journal ArticleDOI
Return-beam-induced oscillations in self-coupled semiconductor lasers
TL;DR: When a stripe-geometry heterostructure GaAlAs laser is irradiated by its own output beam, oscillations in the 1-100 MHz range are generated in the laser, and the frequency f of the oscillation varies with the length 2L of the optical path of the beam returned as f = α(c/2L), with α ≪ 1, where c is the velocity of light as discussed by the authors.
Journal ArticleDOI
Self-coupled optical pickup
TL;DR: When a double- or multi-heterostructure GaAlAs laser is irradiated by its own output laser beam, an oscillatory shift of about 25 MHz is observed in the electric conductivity of the laser.
Journal ArticleDOI
Suppression of intensity self-pulsations in CW junction lasers by frequency-selective optical feedback
TL;DR: In this article, the authors proposed a frequency-selective feedback mechanism for self-induced optical pulsing in CW junction lasers, which is achieved by optically coupling a diffraction grating to a laser mirror.
Related Papers (5)
External optical feedback effects on semiconductor injection laser properties
R. Lang,Kohroh Kobayashi +1 more