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We identify key parameters that control the low-frequency damping commonly observed in optical injection-locked lasers. We demonstrate, experimentally and theoretically, that by biasing the slave laser at higher current, the impact of this damping can be eliminated. A record-high 80-GHz intrinsic 3-dB frequency is achieved.
We review the recent advances in optical injection-locked lasers, focusing on high resonance frequencies (> 100 GHz) and 3 dB bandwidth (> 80 GHz). Physical parameters governing the dynamic performance will be discussed.
A record resonance frequency of 28 GHz and an intrinsic laser 3 dB bandwidth of 39 GHz is reported for a directly modulated injection-locked 1.55 /spl mu/m VCSEL. Using polarization maintaining components, S21 and RIN is studied experimentally.
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