Journal ArticleDOI
Far-field behavior of injection-locked semiconductor laser arrays
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TLDR
A computer model of injection-locked gain-guided semiconductor arrays is developed to explain some experimental observations and properties of the index-guided case: inefficient end-element injection but an on-axis single-lobed center-element injections.Abstract:
We have developed a computer model of injection-locked gain-guided semiconductor arrays to explain some experimental observations: the creation of a single-lobed far field from a normally double-lobed far field; the increase in the divergence angle of the far-field lobe(s); the shifting of power from one off-axis lobe to the other; and the regression back to a double-lobed far field when the ratio between array power and injection power becomes too large. The model is then extrapolated to look at properties of the index-guided case: inefficient end-element injection but an on-axis single-lobed center-element injection.read more
Citations
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Journal ArticleDOI
Diode-laser deceleration and collimation of a rubidium beam
TL;DR: In this article, the use of frequency-chirped diode lasers to decelerate a thermal atomic beam of Rb and, in a separate experiment, the use with frequency-stabilized diode laser to collimate the beam with optical molasses was reported.
Journal ArticleDOI
Analysis of injection-locked gain-guided diode laser arrays
TL;DR: In this article, a new model for injection-locked gain guided laser arrays is proposed, which predicts far-field and near-field patterns, locking bandwidth, beam-steering properties, and locked output power.
Journal ArticleDOI
Injection-beam parameter optimization of an injection-locked diode-laser array.
TL;DR: The dependence of the far-field distribution of an externally injection-locked array on the width and power of the injected beam was determined by numerical simulation and qualified agreement with experimental results using a 20-element array was observed.
Journal ArticleDOI
Phase-locked integrated arrays of injection lasers
TL;DR: In this paper, a review of the main results obtained in the last few years in the course of development and studies of integrated injection laser arrays is given, where the main configurations of such arrays are considered: they differ in respect of the structure of the active elements and methods used to couple the elements optically.
Journal ArticleDOI
Narrowband, high power light from diode lasers
S.-Q. Shang,Harold Metcalf +1 more
TL;DR: A simple quantitative model of the amplified beam had a single diffraction-limited spatial mode corresponding to the full 100-microm width of the array, indicating that all its stripes were coherent.
References
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Journal ArticleDOI
Injection locking of coupled‐stripe diode laser arrays
TL;DR: In this paper, the control of the far-field beam pattern and the spectrum of a 10-element laser diode array by injection locking to a single-mode master laser is described.
Journal ArticleDOI
Lateral analysis of quasi-index-guided injection lasers: Transition from gain to index guiding
TL;DR: In this paper, a quasi-index-guided single-lobe ridge waveguide laser was shown to exhibit a transition from gain-guided to index-guided regime when the threshold current decreases rapidly, the lateral mode contracts, and the far field changes from a twin lobe to a single lobe pattern.
Journal ArticleDOI
Single‐channel injection locking of a diode‐laser array with a cw dye laser
TL;DR: In this article, a gain-guided diode-laser array using a single-frequency cw tunable dye laser master oscillator was used to control both the spatial and spectral emission characteristics of the entire ten-element array.
Journal ArticleDOI
Lateral‐mode analysis of gain‐guided and index‐guided semiconductor‐laser arrays
TL;DR: In this paper, the lateral-mode behavior of a semiconductor-laser array is analyzed after including the effect of injected charge carriers on the active-layer dielectric constant, and the resulting mode profile incorporates the effects of gain guiding, carrier-induced index antiguiding, and built-in index guiding.
Journal ArticleDOI
Modeling of injection-locking phenomena in diode-laser arrays
TL;DR: The first self-consistent numerical model to the authors' knowledge of the injection-locking process in a gain-guided diode-laser array reproduces two essential features of device behavior seen in recent experiments: the single-lobed far-field output beam that results from injecting a single end-element of the array and the linear dependence of the far- field beam angle on injection frequency.