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Ultrafast high peak power near infrared laser systems are important in nonlinear biomedical imaging applications including two-photon excitation fluorescence (TPEF) or second harmonic generation (SHG) microscopy that are currently dominated by pulsed solid state lasers. The detected intensity in TPEF and SHG depends quad-ratically on the pulse peak power and linearly on the pulse width and repetition...
Simultaneous high power (2W), high modulation speed (1Gb/s) and high modulation efficiency (14 W/A) operation of a two-electrode tapered laser is reported.
With a fully gain guided quantum-dot tapered laser diode we demonstrate stable low beam divergence, high beam quality together with a record peak power of 2.6W under passive mode locking.
The analog modulation performance of a high-power two-electrode tapered laser is investigated. A 25dB dynamic range for 2.4GHz 802.11g signals is achieved with a 26dB loss budget, showing a >1km free space range is possible.
Simultaneous high modulation speed and high modulation efficiency operation of a two-electrode tapered laser is reported. 1 Gb/s direct data modulation is achieved with 68 mA applied current swing for a 0.95 W output optical modulation amplitude.
We have obtained a high power of 3 W CW, 57% maximum wall-plug efficiency, a record-high modulation efficiency of 19 W/A at 700 Mb/s, more than 1.6 W optical modulation amplitude and 19 dB extinction ratio.
We report a high modulation efficiency two-electrode tapered laser with a record 0.81 W output optical modulation amplitude for 70 mA applied current swing under 700 Mb/s direct modulation. In addition the device shows a record 40.5 W/A static modulation efficiency.
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