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High-power wavelength stabilized tilted cavity laser with a side mode suppression ratio
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View: Figures


Image of FIG. 1.
FIG. 1.

The reflectivity spectrum of the cavity at tilted incidence of light (a) when recorded from the reference GaAs media. The reflectivity spectrum of a multilayer interference reflector (MIR) at tilted incidence of light (b) recorded from the same reference media, dispersion curves of the cavity and the MIR (c) defining the intersection point at which the leakage loss to the GaAs substrate is minimum. The angle increases with respect to the normal to the -junction plane and it is larger than the angle of the total internal reflection of the GaAs–AlGaAs interface. Note that the light can not escape the waveguide [see (d)] except of leaking to the GaAs substrate. (d) Cross-sectional view of a TCL.

Image of FIG. 2.
FIG. 2.

cw light-current characteristic of a -wide ridge tilted cavity laser at . The left inset shows a normalized far field pattern recorded in the direction parallel to the junction at drive currents (solid line), (dashed line), and (dotted line). The right inset shows a spectrum of a laser at the output power .

Image of FIG. 3.
FIG. 3.

Small signal modulation response for a -wide ridge tilted cavity laser at for three different bias currents. The maximum modulation bandwidth measured at was . The inset depicts the modulation efficiency of the laser, with a slope of .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-power wavelength stabilized 970nm tilted cavity laser with a 41.3dB side mode suppression ratio